diff --git a/.github/PULL_REQUEST_TEMPLATE b/.github/PULL_REQUEST_TEMPLATE
index fd961f44a..d1e04504a 100644
--- a/.github/PULL_REQUEST_TEMPLATE
+++ b/.github/PULL_REQUEST_TEMPLATE
@@ -1,6 +1,7 @@
 <!--
 We appreciate the effort for this pull request but before that please make sure you read the contribution guidelines given above, then fill out the blanks below.
 
+**All third party contributors acknowledge that any contributions they provide will be made under the same open source license that the open source project is provided under.**
 
 Please enter each Issue number you are resolving in your PR after one of the following words [Fixes, Closes, Resolves]. This will auto-link these issues and close them when this PR is merged!
 e.g. 
@@ -10,6 +11,7 @@ Closes #2
 # Fixes # 
 
 ### Checklist
+- [ ] I acknowledge that all my contributions will be made under the project's license
 - [ ] I have made a material change to the repo (functionality, testing, spelling, grammar)
 - [ ] I have read the [Contribution Guide] and my PR follows them.
 - [ ] I updated my branch with the development branch.
@@ -21,4 +23,4 @@ Closes #2
 - 
 - 
 
-If you have questions, please send an email to [Sendgrid](mailto:dx@sendgrid.com), or file a Github Issue in this repository.
+If you have questions, please send an email to [Twilio Sendgrid](mailto:dx@sendgrid.com), or file a Github Issue in this repository.
diff --git a/.gitignore b/.gitignore
index dcd27cb08..efe514cb4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,4 +16,4 @@ test/prism/*
 prism*
 temp.php
 example*.php
-TODO.txt
\ No newline at end of file
+TODO.txt
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index b2439f6ad..2bd636275 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -1,15 +1,15 @@
-# SendGrid Community Code of Conduct
+# Twilio SendGrid Community Code of Conduct
 
-The SendGrid open source community is made up of members from around the globe with a diverse set of skills, personalities, and experiences. It is through these differences that our community experiences successes and continued growth. When you're working with members of the community, we encourage you to follow these guidelines, which help steer our interactions and strive to maintain a positive, successful and growing community. 
+The Twilio SendGrid open source community is made up of members from around the globe with a diverse set of skills, personalities, and experiences. It is through these differences that our community experiences successes and continued growth. When you're working with members of the community, we encourage you to follow these guidelines, which help steer our interactions and strive to maintain a positive, successful and growing community. 
 
 ### Be Open
 Members of the community are open to collaboration, whether it's on pull requests, code reviews, approvals, issues or otherwise. We're receptive to constructive comments and criticism, as the experiences and skill sets of all members contribute to the whole of our efforts. We're accepting of all who wish to take part in our activities, fostering an environment where anyone can participate, and everyone can make a difference.
 
 ### Be Considerate
-Members of the community are considerate of their peers, which include other contributors and users of SendGrid. We're thoughtful when addressing the efforts of others, keeping in mind that often the labor was completed with the intent of the good of the community. We're attentive in our communications, whether in person or online, and we're tactful when approaching differing views.
+Members of the community are considerate of their peers, which include other contributors and users of Twilio SendGrid. We're thoughtful when addressing the efforts of others, keeping in mind that often the labor was completed with the intent of the good of the community. We're attentive in our communications, whether in person or online, and we're tactful when approaching differing views.
 
 ### Be Respectful
-Members of the community are respectful. We're respectful of others, their positions, their skills, their commitments and their efforts. We're respectful of the volunteer efforts that permeate the SendGrid community. We're respectful of the processes outlined in the community, and we work within them. When we disagree, we are courteous in raising our issues.  Overall, we're good to each other. We contribute to this community not because we have to, but because we want to. If we remember that, these guidelines will come naturally.
+Members of the community are respectful. We're respectful of others, their positions, their skills, their commitments and their efforts. We're respectful of the volunteer efforts that permeate the Twilio SendGrid community. We're respectful of the processes outlined in the community, and we work within them. When we disagree, we are courteous in raising our issues.  Overall, we're good to each other. We contribute to this community not because we have to, but because we want to. If we remember that, these guidelines will come naturally.
 
 ## Additional Guidance 
 
@@ -17,24 +17,21 @@ Members of the community are respectful. We're respectful of others, their posit
 Community discussions often involve interested parties. We expect participants to be aware when they are conflicted due to employment or other projects they are involved in and disclose those interests to other project members. When in doubt, over-disclose. Perceived conflicts of interest are important to address so that the community’s decisions are credible even when unpopular, difficult or favorable to the interests of one group over another.
 
 ### Interpretation
-This Code is not exhaustive or complete. It is not a rulebook; it serves to distill our common understanding of a collaborative, shared environment and goals. We expect it to be followed in spirit as much as in the letter.  When in doubt, try to abide by [SendGrid’s cultural values](https://sendgrid.com/blog/employee-engagement-the-4h-way) defined by our “4H’s”: Happy, Hungry, Humble and Honest.  
+This Code is not exhaustive or complete. It is not a rulebook; it serves to distill our common understanding of a collaborative, shared environment and goals. We expect it to be followed in spirit as much as in the letter.  When in doubt, try to abide by [Twilio SendGrid’s cultural values](https://sendgrid.com/blog/employee-engagement-the-4h-way) defined by our “4H’s”: Happy, Hungry, Humble and Honest.  
 
 ### Enforcement
-Most members of the SendGrid community always comply with this Code, not because of the existence of this Code, but because they have long experience participating in open source communities where the conduct described above is normal and expected. However, failure to observe this Code may be grounds for suspension, reporting the user for abuse or changing permissions for outside contributors.
+Most members of the Twilio SendGrid community always comply with this Code, not because of the existence of this Code, but because they have long experience participating in open source communities where the conduct described above is normal and expected. However, failure to observe this Code may be grounds for suspension, reporting the user for abuse or changing permissions for outside contributors.
 
 ## If you have concerns about someone’s conduct
 **Initiate Direct Contact** - It is always appropriate to email a community member (if contact information is available), mention that you think their behavior was out of line, and (if necessary) point them to this Code.
 
 **Discuss Publicly** - Discussing publicly is always acceptable. Note, though, that approaching the person directly may be better, as it tends to make them less defensive, and it respects the time of other community members, so you probably want to try direct contact first.
 
-**Contact the Moderators** - You can reach the SendGrid moderators by emailing dx@sendgrid.com.
-
-## Submission to SendGrid Repositories
-Finally, just a reminder, changes to the SendGrid repositories will only be accepted upon completion of the [SendGrid Contributor Agreement](https://cla.sendgrid.com). 
+**Contact the Moderators** - You can reach the Twilio SendGrid moderators by emailing dx@sendgrid.com.
 
 ## Attribution
 
-SendGrid thanks the following, on which it draws for content and inspiration:
+Twilio SendGrid thanks the following, on which it draws for content and inspiration:
 
 * [Python Community Code of Conduct](https://www.python.org/psf/codeofconduct/)  
 * [Open Source Initiative General Code of Conduct](https://opensource.org/codeofconduct) 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index bf5ccf007..84e1e0c4a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,30 +1,26 @@
-Hello! Thank you for choosing to help contribute to one of the SendGrid open source libraries. There are many ways you can contribute and help is always welcome. We simply ask that you follow the following contribution policies.
+Hello! Thank you for choosing to help contribute to one of the Twilio SendGrid open source libraries. There are many ways you can contribute and help is always welcome. We simply ask that you follow the following contribution policies.
+
+All third party contributors acknowledge that any contributions they provide will be made under the same open source license that the open source project is provided under.
 
-- [CLAs and CCLAs](#cla)
-- [Roadmap & Milestones](#roadmap)
 - [Feature Request](#feature-request)
 - [Submit a Bug Report](#submit-a-bug-report)
+  - [Please use our Bug Report Template](#please-use-our-bug-report-template)
 - [Improvements to the Codebase](#improvements-to-the-codebase)
-- [Understanding the Code Base](#understanding-the-codebase)
+  - [Development Environment](#development-environment)
+    - [Install and Run Locally](#install-and-run-locally)
+      - [Prerequisites](#prerequisites)
+      - [Initial setup:](#initial-setup)
+  - [Environment Variables](#environment-variables)
+      - [Execute:](#execute)
+- [Understanding the Code Base](#understanding-the-code-base)
 - [Testing](#testing)
-- [Style Guidelines & Naming Conventions](#style-guidelines-and-naming-conventions)
-- [Creating a Pull Request](#creating-a-pull-request)
+- [Style Guidelines & Naming Conventions](#style-guidelines--naming-conventions)
+- [Creating a Pull Request<a name="creating_a_pull_request"></a>](#creating-a-pull-requesta-name%22creatingapullrequest%22a)
 - [Code Reviews](#code-reviews)
 
 <a name="roadmap"></a>
 We use [Milestones](https://github.com/sendgrid/sendgrid-php/milestones) to help define current roadmaps, please feel free to grab an issue from the current milestone. Please indicate that you have begun work on it to avoid collisions. Once a PR is made, community review, comments, suggestions and additional PRs are welcomed and encouraged.
 
-<a name="cla"></a>
-## CLAs and CCLAs
-
-Before you get started, SendGrid requires that a SendGrid Contributor License Agreement (CLA) be filled out by every contributor to a SendGrid open source project.
-
-Our goal with the CLA is to clarify the rights of our contributors and reduce other risks arising from inappropriate contributions.  The CLA also clarifies the rights SendGrid holds in each contribution and helps to avoid misunderstandings over what rights each contributor is required to grant to SendGrid when making a contribution.  In this way the CLA encourages broad participation by our open source community and helps us build strong open source projects, free from any individual contributor withholding or revoking rights to any contribution.
-
-SendGrid does not merge a pull request made against a SendGrid open source project until that pull request is associated with a signed CLA. Copies of the CLA are available [here](https://gist.github.com/SendGridDX/98b42c0a5d500058357b80278fde3be8#file-sendgrid_cla).
-
-When you create a Pull Request, after a few seconds, a comment will appear with a link to the CLA. Click the link and fill out the brief form and then click the "I agree" button and you are all set. You will not be asked to re-sign the CLA unless we make a change.
-
 There are a few ways to contribute, which we'll enumerate below:
 
 <a name="feature-request"></a>
@@ -79,7 +75,7 @@ composer install
 
 ### Environment Variables
 
-First, get your free SendGrid account [here](https://sendgrid.com/free?source=sendgrid-php).
+First, get your free Twilio SendGrid account [here](https://sendgrid.com/free?source=sendgrid-php).
 
 Next, update your environment with your [SENDGRID_API_KEY](https://app.sendgrid.com/settings/api_keys).
 
@@ -116,7 +112,7 @@ Unit tests for the HTTP client.
 
 **/lib**
 
-The interface to the SendGrid API. The subfolders are helpers.
+The interface to the Twilio SendGrid API. The subfolders are helpers.
 
 <a name="testing"></a>
 ## Testing
diff --git a/LICENSE.md b/LICENSE.md
index f7f4643ad..42495db8c 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2012-2018 SendGrid, Inc.
+Copyright (c) 2012-19 Twilio SendGrid, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index 37db6efb2..7a30ea092 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-![SendGrid Logo](https://uiux.s3.amazonaws.com/2016-logos/email-logo%402x.png)
+![SendGrid Logo](https://github.com/sendgrid/sendgrid-python/raw/master/twilio_sendgrid_logo.png)
 
 [![BuildStatus](https://travis-ci.org/sendgrid/sendgrid-php.svg?branch=master)](https://travis-ci.org/sendgrid/sendgrid-php)
 [![Packagist](https://img.shields.io/packagist/v/sendgrid/sendgrid.svg)](https://packagist.org/packages/sendgrid/sendgrid)
@@ -9,13 +9,15 @@
 [![GitHub contributors](https://img.shields.io/github/contributors/sendgrid/sendgrid-php.svg)](https://github.com/sendgrid/sendgrid-php/graphs/contributors)
 [![Open Source Helpers](https://www.codetriage.com/sendgrid/sendgrid-php/badges/users.svg)](https://www.codetriage.com/sendgrid/sendgrid-php)
 
-**NEW:** Subscribe to email [notifications](https://dx.sendgrid.com/newsletter/php) for releases and breaking changes.
+**NEW:** 
+- Subscribe to email [notifications](https://dx.sendgrid.com/newsletter/php) for releases and breaking changes.
+- Send SMS messages with [Twilio](https://github.com/sendgrid/sendgrid-php/blob/master/USE_CASES.md#sms).
 
-**This library allows you to quickly and easily use the SendGrid Web API v3 via PHP.**
+**This library allows you to quickly and easily use the Twilio SendGrid Web API v3 via PHP.**
 
-Version 7.X.X of this library provides full support for all SendGrid [Web API v3](https://sendgrid.com/docs/API_Reference/Web_API_v3/index.html) endpoints, including the new [v3 /mail/send](https://sendgrid.com/blog/introducing-v3mailsend-sendgrids-new-mail-endpoint).
+Version 7.X.X of this library provides full support for all Twilio SendGrid [Web API v3](https://sendgrid.com/docs/API_Reference/Web_API_v3/index.html) endpoints, including the new [v3 /mail/send](https://sendgrid.com/blog/introducing-v3mailsend-sendgrids-new-mail-endpoint).
 
-We want this library to be community driven and SendGrid led. Your help is needed to realize this goal. To help make sure we are building the right things in the right order, we ask that you create [issues](https://github.com/sendgrid/sendgrid-php/issues) and [pull requests](https://github.com/sendgrid/sendgrid-php/blob/master/CONTRIBUTING.md) or simply upvote or comment on existing issues or pull requests.
+We want this library to be community driven and Twilio SendGrid led. Your help is needed to realize this goal. To help make sure we are building the right things in the right order, we ask that you create [issues](https://github.com/sendgrid/sendgrid-php/issues) and [pull requests](https://github.com/sendgrid/sendgrid-php/blob/master/CONTRIBUTING.md) or simply upvote or comment on existing issues or pull requests.
 
 Please browse the rest of this README for further details.
 
@@ -40,7 +42,8 @@ We appreciate your continued support, thank you!
 ## Prerequisites
 
 - PHP version 5.6, 7.0, 7.1 or 7.2
-- The SendGrid service, starting at the [free level](https://sendgrid.com/free?source=sendgrid-php) to send up to 40,000 emails for the first 30 days, then send 100 emails/day free forever or check out [our pricing](https://sendgrid.com/pricing?source=sendgrid-php).
+- The Twilio SendGrid service, starting at the [free level](https://sendgrid.com/free?source=sendgrid-php) to send up to 40,000 emails for the first 30 days, then send 100 emails/day free forever or check out [our pricing](https://sendgrid.com/pricing?source=sendgrid-php).
+- For SMS messages, you will need a free [Twilio account](https://www.twilio.com/try-twilio?source=sendgrid-php).
 
 ## Setup Environment Variables
 
@@ -58,7 +61,7 @@ source ./.env
 
 ## Install Package
 
-Add SendGrid to your `composer.json` file. If you are not using [Composer](http://getcomposer.org), we highly recommend it. It's an excellent way to manage dependencies in your PHP application.
+Add Twilio SendGrid to your `composer.json` file. If you are not using [Composer](http://getcomposer.org), we highly recommend it. It's an excellent way to manage dependencies in your PHP application.
 
 ```json
 {
@@ -78,7 +81,7 @@ Previous versions of the library can be found in the [version index](https://sen
 
 ## Dependencies
 
-- The SendGrid Service, starting at the [free level](https://sendgrid.com/free?source=sendgrid-php)
+- The Twilio SendGrid Service, starting at the [free level](https://sendgrid.com/free?source=sendgrid-php)
 - The dependency free [php-http-client](https://github.com/sendgrid/php-http-client)
 
 <a name="quick-start"></a>
@@ -101,7 +104,7 @@ require 'vendor/autoload.php'; // If you're using Composer (recommended)
 
 $email = new \SendGrid\Mail\Mail(); 
 $email->setFrom("test@example.com", "Example User");
-$email->setSubject("Sending with SendGrid is Fun");
+$email->setSubject("Sending with Twilio SendGrid is Fun");
 $email->addTo("test@example.com", "Example User");
 $email->addContent("text/plain", "and easy to do anywhere, even with PHP");
 $email->addContent(
@@ -182,7 +185,7 @@ try {
 <a name="usage"></a>
 # Usage
 
-- [SendGrid Docs](https://sendgrid.com/docs/API_Reference/index.html)
+- [Twilio SendGrid Docs](https://sendgrid.com/docs/API_Reference/index.html)
 - [Generic Library Usage
     Documentation](https://github.com/sendgrid/sendgrid-php/tree/master/USAGE.md)
 - [Example Code](https://github.com/sendgrid/sendgrid-php/blob/master/USE_CASES.md)
@@ -220,9 +223,9 @@ Please see our [troubleshooting guide](https://github.com/sendgrid/sendgrid-php/
 <a name="about"></a>
 # About
 
-sendgrid-php is guided and supported by the SendGrid [Developer Experience Team](mailto:dx@sendgrid.com).
+sendgrid-php is guided and supported by the Twilio [Developer Experience Team](mailto:dx@sendgrid.com).
 
-sendgrid-php is maintained and funded by SendGrid, Inc. The names and logos for sendgrid-php are trademarks of SendGrid, Inc.
+sendgrid-php is maintained and funded by Twilio SendGrid, Inc. The names and logos for sendgrid-php are trademarks of Twilio SendGrid, Inc.
 
 
 # License
diff --git a/TROUBLESHOOTING.md b/TROUBLESHOOTING.md
index 30127e29c..d76382a58 100644
--- a/TROUBLESHOOTING.md
+++ b/TROUBLESHOOTING.md
@@ -1,32 +1,33 @@
-If you have a non-library SendGrid issue, please contact our [support team](https://support.sendgrid.com).
+If you have a non-library Twilio SendGrid issue, please contact our [support team](https://support.sendgrid.com).
 
 If you can't find a solution below, please open an [issue](https://github.com/sendgrid/sendgrid-php/issues).
 
 
 ## Table of Contents
 
-* [Migrating from v2 to v3](#migrating)
-* [Continue Using v2](#v2)
-* [Testing v3 /mail/send Calls Directly](#testing)
-* [Error Messages](#error)
-* [Versions](#versions)
-* [Environment Variables and Your SendGrid API Key](#environment)
-* [Using the Package Manager](#package-manager)
-* [Fixing Error 415](#error-415)
-* [Viewing the Request Body](#request-body)
-* [Google App Engine installation](#GAE-instructions)
+- [Table of Contents](#table-of-contents)
+- [Migrating from v2 to v3](#migrating-from-v2-to-v3)
+- [Continue Using v2](#continue-using-v2)
+- [Testing v3 /mail/send Calls Directly](#testing-v3-mailsend-calls-directly)
+- [Error Messages](#error-messages)
+- [Versions](#versions)
+- [Environment Variables and Your Twilio SendGrid API Key](#environment-variables-and-your-twilio-sendgrid-api-key)
+- [Using the Package Manager](#using-the-package-manager)
+- [Fixing Error 415](#fixing-error-415)
+- [Viewing the Request Body](#viewing-the-request-body)
+- [Google App Engine installation](#google-app-engine-installation)
 
 <a name="migrating"></a>
 ## Migrating from v2 to v3
 
-In this context, we are referring to the version of the SendGrid API.
+In this context, we are referring to the version of the Twilio SendGrid API.
 
 Please review [our guide](https://sendgrid.com/docs/Classroom/Send/v3_Mail_Send/how_to_migrate_from_v2_to_v3_mail_send.html) on how to migrate from v2 to v3.
 
 <a name="v2"></a>
 ## Continue Using v2
 
-In this context, we are referring to the version of the SendGrid API.
+In this context, we are referring to the version of the Twilio SendGrid API.
 
 [Here](https://github.com/sendgrid/sendgrid-php/releases/tag/v4.0.4) is the last working version with v2 support.
 
@@ -52,14 +53,14 @@ Download packaged zip [here](https://sendgrid-open-source.s3.amazonaws.com/sendg
 
 Failed requests will always return an error response, including a response code, a message explaining the reason for the error, and a link to any relevant documentation that may help you troubleshoot the problem.
 
-To read the error message returned by SendGrid's API:
+To read the error message returned by Twilio SendGrid's API:
 
 ```php
 try {
     $response = $sendgrid->send($email);
     print $response->statusCode() . "\n"; 
     print_r($response->headers());
-    print $response->body() . "\n"; // SendGrid specific errors are found here
+    print $response->body() . "\n"; // Twilio SendGrid specific errors are found here
 } catch (Exception $e) {
     echo 'Caught exception: ',  $e->getMessage(), "\n";
 }
@@ -73,11 +74,11 @@ You may find complete documentation [here](https://sendgrid.com/docs/API_Referen
 We follow the MAJOR.MINOR.PATCH versioning scheme as described by [SemVer.org](http://semver.org). Therefore, we recommend that you always pin (or vendor) the particular version you are working with to your code and never auto-update to the latest version. Especially when there is a MAJOR point release, since that is guaranteed to be a breaking change. Changes are documented in the [CHANGELOG](https://github.com/sendgrid/sendgrid-php/blob/master/CHANGELOG.md) and [releases](https://github.com/sendgrid/sendgrid-php/releases) section.
 
 <a name="environment"></a>
-## Environment Variables and Your SendGrid API Key
+## Environment Variables and Your Twilio SendGrid API Key
 
-All of our examples assume you are using [environment variables](https://github.com/sendgrid/sendgrid-php#setup-environment-variables) to hold your SendGrid API key.
+All of our examples assume you are using [environment variables](https://github.com/sendgrid/sendgrid-php#setup-environment-variables) to hold your Twilio SendGrid API key.
 
-If you choose to add your SendGrid API key directly (not recommended):
+If you choose to add your Twilio SendGrid API key directly (not recommended):
 
 `$apiKey = getenv('SENDGRID_API_KEY');`
 
@@ -85,7 +86,7 @@ becomes
 
 `$apiKey = 'SENDGRID_API_KEY';`
 
-In the first case SENDGRID_API_KEY is in reference to the name of the environment variable, while the second case references the actual SendGrid API Key.
+In the first case SENDGRID_API_KEY is in reference to the name of the environment variable, while the second case references the actual Twilio SendGrid API Key.
 
 <a name="package-manager"></a>
 ## Using the Package Manager
diff --git a/USAGE.md b/USAGE.md
index eebc6c4fd..c6666a09c 100644
--- a/USAGE.md
+++ b/USAGE.md
@@ -301,7 +301,7 @@ A JSON request body containing a "name" property is required. If number of maxim
 
 There is a limit of 100 API Keys on your account.
 
-The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
+The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the Twilio SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
 
 See the [API Key Permissions List](https://sendgrid.com/docs/API_Reference/Web_API_v3/API_Keys/api_key_permissions_list.html) for a list of all available scopes.
 
@@ -327,7 +327,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve all API Keys that belong to the authenticated user.**
 
-The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
+The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the Twilio SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
 
 ### GET /api_keys
 
@@ -346,7 +346,7 @@ print_r($response->headers());
 A JSON request body with a "name" property is required.
 Most provide the list of all the scopes an api key should have.
 
-The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
+The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the Twilio SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
 
 
 ### PUT /api_keys/{api_key_id}
@@ -372,7 +372,7 @@ print_r($response->headers());
 
 A JSON request body with a "name" property is required.
 
-The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
+The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the Twilio SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
 
 ## URI Parameters
 
@@ -415,7 +415,7 @@ print_r($response->headers());
 
 Authentications using this API Key will fail after this request is made, with some small propagation delay.If the API Key ID does not exist an HTTP 404 will be returned.
 
-The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
+The API Keys feature allows customers to be able to generate an API Key credential which can be used for authentication with the Twilio SendGrid v3 Web API or the [Mail API Endpoint](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
 
 ## URI Parameters
 
@@ -1101,7 +1101,7 @@ print_r($response->headers());
 
 **This endpoint allows you to create a custom field.**
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### POST /contactdb/custom_fields
 
@@ -1120,7 +1120,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve all custom fields.**
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### GET /contactdb/custom_fields
 
@@ -1135,7 +1135,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve a custom field by ID.**
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### GET /contactdb/custom_fields/{custom_field_id}
 
@@ -1151,7 +1151,7 @@ print_r($response->headers());
 
 **This endpoint allows you to delete a custom field by ID.**
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### DELETE /contactdb/custom_fields/{custom_field_id}
 
@@ -1352,9 +1352,9 @@ print_r($response->headers());
 
 The body of an API call to this endpoint must include an array of one or more recipient objects.
 
-It is of note that you can add custom field data as parameters on recipient objects. We have provided an example using some of the default custom fields SendGrid provides.
+It is of note that you can add custom field data as parameters on recipient objects. We have provided an example using some of the default custom fields Twilio SendGrid provides.
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### PATCH /contactdb/recipients
 
@@ -1376,7 +1376,7 @@ print_r($response->headers());
 
 **This endpoint allows you to add a Marketing Campaigns recipient.**
 
-It is of note that you can add custom field data as a parameter on this endpoint. We have provided an example using some of the default custom fields SendGrid provides.
+It is of note that you can add custom field data as a parameter on this endpoint. We have provided an example using some of the default custom fields Twilio SendGrid provides.
 
 The Contacts API helps you manage your [Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html) recipients.
 
@@ -1428,7 +1428,7 @@ print_r($response->headers());
 
 The body of an API call to this endpoint must include an array of recipient IDs of the recipients you want to delete.
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### DELETE /contactdb/recipients
 
@@ -1464,7 +1464,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve the total number of Marketing Campaigns recipients.**
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### GET /contactdb/recipients/count
 
@@ -1488,7 +1488,7 @@ your epoch time to a date range encompassing the entire day. For example, an epo
 Mon, 02 Feb 2015 00:06:40 GMT, but internally the system will search from Mon, 02 Feb 2015 00:00:00 GMT through
 Mon, 02 Feb 2015 23:59:59 GMT.
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### GET /contactdb/recipients/search
 
@@ -1554,7 +1554,7 @@ print_r($response->headers());
 
 **This endpoint allows you to list all fields that are reserved and can't be used for custom field names.**
 
-The contactdb is a database of your contacts for [SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
+The contactdb is a database of your contacts for [Twilio SendGrid Marketing Campaigns](https://sendgrid.com/docs/User_Guide/Marketing_Campaigns/index.html).
 
 ### GET /contactdb/reserved_fields
 
@@ -1824,7 +1824,7 @@ print_r($response->headers());
 
 **Each user can create up to 10 different IP pools.**
 
-IP Pools allow you to group your dedicated SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
+IP Pools allow you to group your dedicated Twilio SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
 
 IP pools can only be used with authenticated IP addresses.
 
@@ -1846,7 +1846,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve all of your IP pools.**
 
-IP Pools allow you to group your dedicated SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
+IP Pools allow you to group your dedicated Twilio SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
 
 IP pools can only be used with authenticated IP addresses.
 
@@ -1865,7 +1865,7 @@ print_r($response->headers());
 
 **This endpoint allows you to update the name of an IP pool.**
 
-IP Pools allow you to group your dedicated SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
+IP Pools allow you to group your dedicated Twilio SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
 
 IP pools can only be used with authenticated IP addresses.
 
@@ -1888,7 +1888,7 @@ print_r($response->headers());
 
 **This endpoint allows you to list all of the IP addresses that are in a specific IP pool.**
 
-IP Pools allow you to group your dedicated SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
+IP Pools allow you to group your dedicated Twilio SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
 
 IP pools can only be used with authenticated IP addresses.
 
@@ -1908,7 +1908,7 @@ print_r($response->headers());
 
 **This endpoint allows you to delete an IP pool.**
 
-IP Pools allow you to group your dedicated SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
+IP Pools allow you to group your dedicated Twilio SendGrid IP addresses together. For example, you could create separate pools for your transactional and marketing email. When sending marketing emails, specify that you want to use the marketing IP pool. This allows you to maintain separate reputations for your different email traffic.
 
 IP pools can only be used with authenticated IP addresses.
 
@@ -1968,7 +1968,7 @@ print_r($response->headers());
 
 **This endpoint allows you to enter an IP address into warmup mode.**
 
-SendGrid can automatically warm up dedicated IP addresses by limiting the amount of mail that can be sent through them per hour, with the limit determined by how long the IP address has been in warmup. See the [warmup schedule](https://sendgrid.com/docs/API_Reference/Web_API_v3/IP_Management/ip_warmup_schedule.html) for more details on how SendGrid limits your email traffic for IPs in warmup.
+Twilio SendGrid can automatically warm up dedicated IP addresses by limiting the amount of mail that can be sent through them per hour, with the limit determined by how long the IP address has been in warmup. See the [warmup schedule](https://sendgrid.com/docs/API_Reference/Web_API_v3/IP_Management/ip_warmup_schedule.html) for more details on how Twilio SendGrid limits your email traffic for IPs in warmup.
 
 For more general information about warming up IPs, please see our [Classroom](https://sendgrid.com/docs/Classroom/Deliver/Delivery_Introduction/warming_up_ips.html).
 
@@ -1988,7 +1988,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve all of your IP addresses that are currently warming up.**
 
-SendGrid can automatically warm up dedicated IP addresses by limiting the amount of mail that can be sent through them per hour, with the limit determined by how long the IP address has been in warmup. See the [warmup schedule](https://sendgrid.com/docs/API_Reference/Web_API_v3/IP_Management/ip_warmup_schedule.html) for more details on how SendGrid limits your email traffic for IPs in warmup.
+Twilio SendGrid can automatically warm up dedicated IP addresses by limiting the amount of mail that can be sent through them per hour, with the limit determined by how long the IP address has been in warmup. See the [warmup schedule](https://sendgrid.com/docs/API_Reference/Web_API_v3/IP_Management/ip_warmup_schedule.html) for more details on how Twilio SendGrid limits your email traffic for IPs in warmup.
 
 For more general information about warming up IPs, please see our [Classroom](https://sendgrid.com/docs/Classroom/Deliver/Delivery_Introduction/warming_up_ips.html).
 
@@ -2005,7 +2005,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve the warmup status for a specific IP address.**
 
-SendGrid can automatically warm up dedicated IP addresses by limiting the amount of mail that can be sent through them per hour, with the limit determined by how long the IP address has been in warmup. See the [warmup schedule](https://sendgrid.com/docs/API_Reference/Web_API_v3/IP_Management/ip_warmup_schedule.html) for more details on how SendGrid limits your email traffic for IPs in warmup.
+Twilio SendGrid can automatically warm up dedicated IP addresses by limiting the amount of mail that can be sent through them per hour, with the limit determined by how long the IP address has been in warmup. See the [warmup schedule](https://sendgrid.com/docs/API_Reference/Web_API_v3/IP_Management/ip_warmup_schedule.html) for more details on how Twilio SendGrid limits your email traffic for IPs in warmup.
 
 For more general information about warming up IPs, please see our [Classroom](https://sendgrid.com/docs/Classroom/Deliver/Delivery_Introduction/warming_up_ips.html).
 
@@ -2023,7 +2023,7 @@ print_r($response->headers());
 
 **This endpoint allows you to remove an IP address from warmup mode.**
 
-SendGrid can automatically warm up dedicated IP addresses by limiting the amount of mail that can be sent through them per hour, with the limit determined by how long the IP address has been in warmup. See the [warmup schedule](https://sendgrid.com/docs/API_Reference/Web_API_v3/IP_Management/ip_warmup_schedule.html) for more details on how SendGrid limits your email traffic for IPs in warmup.
+Twilio SendGrid can automatically warm up dedicated IP addresses by limiting the amount of mail that can be sent through them per hour, with the limit determined by how long the IP address has been in warmup. See the [warmup schedule](https://sendgrid.com/docs/API_Reference/Web_API_v3/IP_Management/ip_warmup_schedule.html) for more details on how Twilio SendGrid limits your email traffic for IPs in warmup.
 
 For more general information about warming up IPs, please see our [Classroom](https://sendgrid.com/docs/Classroom/Deliver/Delivery_Introduction/warming_up_ips.html).
 
@@ -2099,7 +2099,7 @@ print_r($response->headers());
 ```
 ## v3 Mail Send
 
-This endpoint allows you to send email over SendGrids v3 Web API, the most recent version of our API. If you are looking for documentation about the v2 Mail Send endpoint, please see our [v2 API Reference](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
+This endpoint allows you to send email over Twilio SendGrid's v3 Web API, the most recent version of our API. If you are looking for documentation about the v2 Mail Send endpoint, please see our [v2 API Reference](https://sendgrid.com/docs/API_Reference/Web_API/mail.html).
 
 * Top level parameters are referred to as "global".
 * Individual fields within the personalizations array will override any other global, or message level, parameters that are defined outside of personalizations.
@@ -2164,8 +2164,8 @@ $request_body = json_decode('{
     },
     "footer": {
       "enable": true,
-      "html": "<p>Thanks</br>The SendGrid Team</p>",
-      "text": "Thanks,/n The SendGrid Team"
+      "html": "<p>Thanks</br>The Twilio SendGrid Team</p>",
+      "text": "Thanks,/n The Twilio SendGrid Team"
     },
     "sandbox_mode": {
       "enable": false
@@ -2263,7 +2263,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve a list of all mail settings.**
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings
 
@@ -2281,7 +2281,7 @@ print_r($response->headers());
 
 The address whitelist setting whitelists a specified email address or domain for which mail should never be suppressed. For example, you own the domain example.com, and one or more of your recipients use email@example.com addresses, by placing example.com in the address whitelist setting, all bounces, blocks, and unsubscribes logged for that domain will be ignored and sent as if under normal sending conditions.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/address_whitelist
 
@@ -2305,7 +2305,7 @@ print_r($response->headers());
 
 The address whitelist setting whitelists a specified email address or domain for which mail should never be suppressed. For example, you own the domain example.com, and one or more of your recipients use email@example.com addresses, by placing example.com in the address whitelist setting, all bounces, blocks, and unsubscribes logged for that domain will be ignored and sent as if under normal sending conditions.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/address_whitelist
 
@@ -2320,9 +2320,9 @@ print_r($response->headers());
 
 **This endpoint allows you to update your current BCC mail settings.**
 
-When the BCC mail setting is enabled, SendGrid will automatically send a blind carbon copy (BCC) to an address for every email sent without adding that address to the header. Please note that only one email address may be entered in this field, if you wish to distribute BCCs to multiple addresses you will need to create a distribution group or use forwarding rules.
+When the BCC mail setting is enabled, Twilio SendGrid will automatically send a blind carbon copy (BCC) to an address for every email sent without adding that address to the header. Please note that only one email address may be entered in this field, if you wish to distribute BCCs to multiple addresses you will need to create a distribution group or use forwarding rules.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/bcc
 
@@ -2341,9 +2341,9 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve your current BCC mail settings.**
 
-When the BCC mail setting is enabled, SendGrid will automatically send a blind carbon copy (BCC) to an address for every email sent without adding that address to the header. Please note that only one email address may be entered in this field, if you wish to distribute BCCs to multiple addresses you will need to create a distribution group or use forwarding rules.
+When the BCC mail setting is enabled, Twilio SendGrid will automatically send a blind carbon copy (BCC) to an address for every email sent without adding that address to the header. Please note that only one email address may be entered in this field, if you wish to distribute BCCs to multiple addresses you will need to create a distribution group or use forwarding rules.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/bcc
 
@@ -2358,9 +2358,9 @@ print_r($response->headers());
 
 **This endpoint allows you to update your current bounce purge settings.**
 
-This setting allows you to set a schedule for SendGrid to automatically delete contacts from your soft and hard bounce suppression lists.
+This setting allows you to set a schedule for Twilio SendGrid to automatically delete contacts from your soft and hard bounce suppression lists.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/bounce_purge
 
@@ -2380,9 +2380,9 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve your current bounce purge settings.**
 
-This setting allows you to set a schedule for SendGrid to automatically delete contacts from your soft and hard bounce suppression lists.
+This setting allows you to set a schedule for Twilio SendGrid to automatically delete contacts from your soft and hard bounce suppression lists.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/bounce_purge
 
@@ -2399,7 +2399,7 @@ print_r($response->headers());
 
 The footer setting will insert a custom footer at the bottom of the text and HTML bodies. Use the embedded HTML editor and plain text entry fields to create the content of the footers to be inserted into your emails.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/footer
 
@@ -2421,7 +2421,7 @@ print_r($response->headers());
 
 The footer setting will insert a custom footer at the bottom of the text and HTML bodies. Use the embedded HTML editor and plain text entry fields to create the content of the footers to be inserted into your emails.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/footer
 
@@ -2438,7 +2438,7 @@ print_r($response->headers());
 
 Activating this setting allows you to specify an email address to which bounce reports are forwarded.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/forward_bounce
 
@@ -2459,7 +2459,7 @@ print_r($response->headers());
 
 Activating this setting allows you to specify an email address to which bounce reports are forwarded.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/forward_bounce
 
@@ -2476,7 +2476,7 @@ print_r($response->headers());
 
 Enabling the forward spam setting allows you to specify an email address to which spam reports will be forwarded.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/forward_spam
 
@@ -2497,7 +2497,7 @@ print_r($response->headers());
 
 Enabling the forward spam setting allows you to specify an email address to which spam reports will be forwarded.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/forward_spam
 
@@ -2514,7 +2514,7 @@ print_r($response->headers());
 
 The plain content setting will automatically convert any plain text emails that you send to HTML before sending.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/plain_content
 
@@ -2534,7 +2534,7 @@ print_r($response->headers());
 
 The plain content setting will automatically convert any plain text emails that you send to HTML before sending.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrids' [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/plain_content
 
@@ -2551,7 +2551,7 @@ print_r($response->headers());
 
 The spam checker filter notifies you when emails are detected that exceed a predefined spam threshold.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/spam_check
 
@@ -2573,7 +2573,7 @@ print_r($response->headers());
 
 The spam checker filter notifies you when emails are detected that exceed a predefined spam threshold.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/spam_check
 
@@ -2592,7 +2592,7 @@ This setting refers to our original email templates. We currently support more f
 
 The legacy email template setting wraps an HTML template around your email content. This can be useful for sending out marketing email and/or other HTML formatted messages.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### PATCH /mail_settings/template
 
@@ -2615,7 +2615,7 @@ This setting refers to our original email templates. We currently support more f
 
 The legacy email template setting wraps an HTML template around your email content. This can be useful for sending out marketing email and/or other HTML formatted messages.
 
-Mail settings allow you to tell SendGrid specific things to do to every email that you send to your recipients over SendGrids [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
+Mail settings allow you to tell Twilio SendGrid specific things to do to every email that you send to your recipients over Twilio SendGrid's [Web API](https://sendgrid.com/docs/API_Reference/Web_API/mail.html) or [SMTP Relay](https://sendgrid.com/docs/API_Reference/SMTP_API/index.html).
 
 ### GET /mail_settings/template
 
@@ -2654,7 +2654,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve a list of all partner settings that you can enable.**
 
-Our partner settings allow you to integrate your SendGrid account with our partners to increase your SendGrid experience and functionality. For more information about our partners, and how you can begin integrating with them, please visit our [User Guide](https://sendgrid.com/docs/User_Guide/Settings/partners.html).
+Our partner settings allow you to integrate your Twilio SendGrid account with our partners to increase your Twilio SendGrid experience and functionality. For more information about our partners, and how you can begin integrating with them, please visit our [User Guide](https://sendgrid.com/docs/User_Guide/Settings/partners.html).
 
 ### GET /partner_settings
 
@@ -2670,9 +2670,9 @@ print_r($response->headers());
 
 **This endpoint allows you to update or change your New Relic partner settings.**
 
-Our partner settings allow you to integrate your SendGrid account with our partners to increase your SendGrid experience and functionality. For more information about our partners, and how you can begin integrating with them, please visit our [User Guide](https://sendgrid.com/docs/User_Guide/Settings/partners.html).
+Our partner settings allow you to integrate your Twilio SendGrid account with our partners to increase your Twilio SendGrid experience and functionality. For more information about our partners, and how you can begin integrating with them, please visit our [User Guide](https://sendgrid.com/docs/User_Guide/Settings/partners.html).
 
-By integrating with New Relic, you can send your SendGrid email statistics to your New Relic Dashboard. If you enable this setting, your stats will be sent to New Relic every 5 minutes. You will need your New Relic License Key to enable this setting. For more information, please see our [Classroom](https://sendgrid.com/docs/Classroom/Track/Collecting_Data/new_relic.html).
+By integrating with New Relic, you can send your Twilio SendGrid email statistics to your New Relic Dashboard. If you enable this setting, your stats will be sent to New Relic every 5 minutes. You will need your New Relic License Key to enable this setting. For more information, please see our [Classroom](https://sendgrid.com/docs/Classroom/Track/Collecting_Data/new_relic.html).
 
 ### PATCH /partner_settings/new_relic
 
@@ -2692,9 +2692,9 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve your current New Relic partner settings.**
 
-Our partner settings allow you to integrate your SendGrid account with our partners to increase your SendGrid experience and functionality. For more information about our partners, and how you can begin integrating with them, please visit our [User Guide](https://sendgrid.com/docs/User_Guide/Settings/partners.html).
+Our partner settings allow you to integrate your Twilio SendGrid account with our partners to increase your Twilio SendGrid experience and functionality. For more information about our partners, and how you can begin integrating with them, please visit our [User Guide](https://sendgrid.com/docs/User_Guide/Settings/partners.html).
 
-By integrating with New Relic, you can send your SendGrid email statistics to your New Relic Dashboard. If you enable this setting, your stats will be sent to New Relic every 5 minutes. You will need your New Relic License Key to enable this setting. For more information, please see our [Classroom](https://sendgrid.com/docs/Classroom/Track/Collecting_Data/new_relic.html).
+By integrating with New Relic, you can send your Twilio SendGrid email statistics to your New Relic Dashboard. If you enable this setting, your stats will be sent to New Relic every 5 minutes. You will need your New Relic License Key to enable this setting. For more information, please see our [Classroom](https://sendgrid.com/docs/Classroom/Track/Collecting_Data/new_relic.html).
 
 ### GET /partner_settings/new_relic
 
@@ -2869,7 +2869,7 @@ If you are creating a domain authentication that you would like a subuser to use
 1. Use the "username" parameter. This allows you to create am authenticated subuser. This means the subuser is able to see and modify the created authentication.
 2. Use the Association workflow (see Associate Domain section). This allows you to assign a domain authentication created by the parent to a subuser. This means the subuser will default to the assigned domain authentication, but will not be able to see or modify that authentication. However, if the subuser creates their own domain authentication it will overwrite the assigned domain authentication.
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -2898,7 +2898,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve a list of all domain authentications you have created.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -2917,7 +2917,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve the default authentication for a domain.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -2939,7 +2939,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve all of the domain authentications that have been assigned to a specific subuser.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio  can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 Domain authentications can be associated with (i.e. assigned to) subusers from a parent account. This functionality allows subusers to send mail using their parent's authenticated domains. To associate a domain authentication with a subuser, the parent account must first create the domain authentication and validate it. The parent may then associate the domain authentication via the subuser management tools.
 
@@ -2963,7 +2963,7 @@ print_r($response->headers());
 
 **This endpoint allows you to disassociate a specific domain authentication from a subuser.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 Domain authentications can be associated with (i.e. assigned to) subusers from a parent account. This functionality allows subusers to send mail using their parent's authenticated domains. To associate a domain authentication with a subuser, the parent account must first create the domain authentication and validate it. The parent may then associate the domain authentication via the subuser management tools.
 
@@ -2987,7 +2987,7 @@ print_r($response->headers());
 
 **This endpoint allows you to update the settings for a domain authentication.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -3009,7 +3009,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve a specific domain authentication.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -3028,7 +3028,7 @@ print_r($response->headers());
 
 **This endpoint allows you to delete a domain authentication.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -3046,7 +3046,7 @@ print_r($response->headers());
 
 **This endpoint allows you to associate a specific domain authentication with a subuser.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 Domain authentications can be associated with (i.e. assigned to) subusers from a parent account. This functionality allows subusers to send mail using their parent's authenticated domains. To associate a domain authentication with a subuser, the parent account must first create the domain authentication and validate it. The parent may then associate the domain authentication via the subuser management tools.
 
@@ -3074,7 +3074,7 @@ print_r($response->headers());
 
 **This endpoint allows you to add an IP address to a domain authentication.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -3100,7 +3100,7 @@ print_r($response->headers());
 
 **This endpoint allows you to remove a domain's IP address from that domain's authentication.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -3125,7 +3125,7 @@ print_r($response->headers());
 
 **This endpoint allows you to validate a domain authentication. If it fails, it will return an error message describing why the domain could not be validated.**
 
-A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
+A domain authentication allows you to remove the via or sent on behalf of message that your recipients see when they read your emails. Authenticating a domain allows you to replace sendgrid.net with your personal sending domain. You will be required to create a subdomain so that Twilio SendGrid can generate the DNS records which you must give to your host provider. If you choose to use Automated Security, Twilio SendGrid will provide you with 3 CNAME records. If you turn Automated Security off, you will be given 2 TXT records and 1 MX record.
 
 For more information on domain authentication, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/)
 
@@ -3150,7 +3150,7 @@ print_r($response->headers());
 
 When creating a reverse DNS record, you should use the same subdomain that you used when you created a domain authentication.
 
-Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
+Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once Twilio SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-reverse-dns/).
 
@@ -3174,7 +3174,7 @@ print_r($response->headers());
 
 You may include a search key by using the "ip" parameter. This enables you to perform a prefix search for a given IP segment (e.g. "192.").
 
-Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
+Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once Twilio SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-reverse-dns/).
 
@@ -3192,7 +3192,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve a reverse DNS record.**
 
-Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
+Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once Twilio SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-reverse-dns/).
 
@@ -3210,7 +3210,7 @@ print_r($response->headers());
 
 **This endpoint allows you to delete a reverse DNS record.**
 
-Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
+Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once Twilio SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-reverse-dns/).
 
@@ -3228,7 +3228,7 @@ print_r($response->headers());
 
 **This endpoint allows you to validate a reverse DNS record.**
 
-Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
+Reverse DNS consists of a subdomain and domain that will be used to generate a record for a given IP. Once Twilio SendGrid has verified that the appropriate A record for the IP has been created, the appropriate reverse DNS record for the IP is generated.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-reverse-dns/).
 
@@ -3291,7 +3291,7 @@ Default link branding is the actual link branding to be used when sending messag
 <ul>
   <li>Validated link branding marked as "default"</li>
   <li>Legacy link brands (migrated from the whitelabel wizard)</li>
-  <li>Default SendGrid link whitelabel (i.e. 100.ct.sendgrid.net)</li>
+  <li>Default Twilio SendGrid link whitelabel (i.e. 100.ct.sendgrid.net)</li>
 </ul>
 
 Email link branding allow all of the click-tracked links you send in your emails to include the URL of your domain instead of sendgrid.net.
@@ -4023,7 +4023,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve a specific spam report.**
 
-[Spam reports](https://sendgrid.com/docs/Glossary/spam_reports.html) happen when a recipient indicates that they think your email is [spam](https://sendgrid.com/docs/Glossary/spam.html) and then their email provider reports this to SendGrid.
+[Spam reports](https://sendgrid.com/docs/Glossary/spam_reports.html) happen when a recipient indicates that they think your email is [spam](https://sendgrid.com/docs/Glossary/spam.html) and then their email provider reports this to Twilio SendGrid.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/User_Guide/Suppressions/spam_reports.html).
 
@@ -4041,7 +4041,7 @@ print_r($response->headers());
 
 **This endpoint allows you to delete a specific spam report.**
 
-[Spam reports](https://sendgrid.com/docs/Glossary/spam_reports.html) happen when a recipient indicates that they think your email is [spam](https://sendgrid.com/docs/Glossary/spam.html) and then their email provider reports this to SendGrid.
+[Spam reports](https://sendgrid.com/docs/Glossary/spam_reports.html) happen when a recipient indicates that they think your email is [spam](https://sendgrid.com/docs/Glossary/spam.html) and then their email provider reports this to Twilio SendGrid.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/User_Guide/Suppressions/spam_reports.html).
 
@@ -4059,7 +4059,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve all spam reports.**
 
-[Spam reports](https://sendgrid.com/docs/Glossary/spam_reports.html) happen when a recipient indicates that they think your email is [spam](https://sendgrid.com/docs/Glossary/spam.html) and then their email provider reports this to SendGrid.
+[Spam reports](https://sendgrid.com/docs/Glossary/spam_reports.html) happen when a recipient indicates that they think your email is [spam](https://sendgrid.com/docs/Glossary/spam.html) and then their email provider reports this to Twilio SendGrid.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/User_Guide/Suppressions/spam_reports.html).
 
@@ -4082,7 +4082,7 @@ There are two options for deleting spam reports:
 1) You can delete all spam reports by setting "delete_all" to true in the request body.
 2) You can delete some spam reports by specifying the email addresses in an array in the request body.
 
-[Spam reports](https://sendgrid.com/docs/Glossary/spam_reports.html) happen when a recipient indicates that they think your email is [spam](https://sendgrid.com/docs/Glossary/spam.html) and then their email provider reports this to SendGrid.
+[Spam reports](https://sendgrid.com/docs/Glossary/spam_reports.html) happen when a recipient indicates that they think your email is [spam](https://sendgrid.com/docs/Glossary/spam.html) and then their email provider reports this to Twilio SendGrid.
 
 For more information, please see our [User Guide](https://sendgrid.com/docs/User_Guide/Suppressions/spam_reports.html).
 
@@ -4465,7 +4465,7 @@ print_r($response->headers());
 
 **This endpoint allows you to update your current settings for open tracking.**
 
-Open Tracking adds an invisible image at the end of the email which can track email opens. If the email recipient has images enabled on their email client, a request to SendGrids server for the invisible image is executed and an open event is logged. These events are logged in the Statistics portal, Email Activity interface, and are reported by the Event Webhook.
+Open Tracking adds an invisible image at the end of the email which can track email opens. If the email recipient has images enabled on their email client, a request to Twilio SendGrid's server for the invisible image is executed and an open event is logged. These events are logged in the Statistics portal, Email Activity interface, and are reported by the Event Webhook.
 
 You can track a variety of the actions your recipients may take when interacting with your emails including opening your emails, clicking on links in your emails, and subscribing to (or unsubscribing from) your emails.
 
@@ -4487,7 +4487,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve your current settings for open tracking.**
 
-Open Tracking adds an invisible image at the end of the email which can track email opens. If the email recipient has images enabled on their email client, a request to SendGrids server for the invisible image is executed and an open event is logged. These events are logged in the Statistics portal, Email Activity interface, and are reported by the Event Webhook.
+Open Tracking adds an invisible image at the end of the email which can track email opens. If the email recipient has images enabled on their email client, a request to Twilio SendGrid's server for the invisible image is executed and an open event is logged. These events are logged in the Statistics portal, Email Activity interface, and are reported by the Event Webhook.
 
 You can track a variety of the actions your recipients may take when interacting with your emails including opening your emails, clicking on links in your emails, and subscribing to (or unsubscribing from) your emails.
 
@@ -4557,11 +4557,11 @@ print_r($response->headers());
 
 Your user's account information includes the user's account type and reputation.
 
-Keeping your user profile up to date is important. This will help SendGrid to verify who you are as well as contact you should we need to.
+Keeping your user profile up to date is important. This will help Twilio SendGrid to verify who you are as well as contact you should we need to.
 
 For more information about your user profile:
 
-* [SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
+* [Twilio SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
 
 ### GET /user/account
 
@@ -4591,11 +4591,11 @@ print_r($response->headers());
 
 **This endpoint allows you to update the email address currently on file for your account.**
 
-Keeping your user profile up to date is important. This will help SendGrid to verify who you are as well as contact you should we need to.
+Keeping your user profile up to date is important. This will help Twilio SendGrid to verify who you are as well as contact you should we need to.
 
 For more information about your user profile:
 
-* [SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
+* [Twilio SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
 
 ### PUT /user/email
 
@@ -4613,11 +4613,11 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve the email address currently on file for your account.**
 
-Keeping your user profile up to date is important. This will help SendGrid to verify who you are as well as contact you should we need to.
+Keeping your user profile up to date is important. This will help Twilio SendGrid to verify who you are as well as contact you should we need to.
 
 For more information about your user profile:
 
-* [SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
+* [Twilio SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
 
 ### GET /user/email
 
@@ -4632,11 +4632,11 @@ print_r($response->headers());
 
 **This endpoint allows you to update your password.**
 
-Keeping your user profile up to date is important. This will help SendGrid to verify who you are as well as contact you should we need to.
+Keeping your user profile up to date is important. This will help Twilio SendGrid to verify who you are as well as contact you should we need to.
 
 For more information about your user profile:
 
-* [SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
+* [Twilio SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
 
 ### PUT /user/password
 
@@ -4655,11 +4655,11 @@ print_r($response->headers());
 
 **This endpoint allows you to update your current profile details.**
 
-Keeping your user profile up to date is important. This will help SendGrid to verify who you are as well as contact you should we need to.
+Keeping your user profile up to date is important. This will help Twilio SendGrid to verify who you are as well as contact you should we need to.
 
 For more information about your user profile:
 
-* [SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
+* [Twilio SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
 
 It should be noted that any one or more of the parameters can be updated via the PATCH /user/profile endpoint. The only requirement is that you include at least one when you PATCH.
 
@@ -4679,11 +4679,11 @@ print_r($response->headers());
 ```
 ## Get a user's profile
 
-Keeping your user profile up to date is important. This will help SendGrid to verify who you are as well as contact you should we need to.
+Keeping your user profile up to date is important. This will help Twilio SendGrid to verify who you are as well as contact you should we need to.
 
 For more information about your user profile:
 
-* [SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
+* [Twilio SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
 
 ### GET /user/profile
 
@@ -4824,11 +4824,11 @@ print_r($response->headers());
 
 **This endpoint allows you to update the username for your account.**
 
-Keeping your user profile up to date is important. This will help SendGrid to verify who you are as well as contact you should we need to.
+Keeping your user profile up to date is important. This will help Twilio SendGrid to verify who you are as well as contact you should we need to.
 
 For more information about your user profile:
 
-* [SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
+* [Twilio SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
 
 ### PUT /user/username
 
@@ -4846,11 +4846,11 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve your current account username.**
 
-Keeping your user profile up to date is important. This will help SendGrid to verify who you are as well as contact you should we need to.
+Keeping your user profile up to date is important. This will help Twilio SendGrid to verify who you are as well as contact you should we need to.
 
 For more information about your user profile:
 
-* [SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
+* [Twilio SendGrid Account Settings](https://sendgrid.com/docs/User_Guide/Settings/account.html)
 
 ### GET /user/username
 
@@ -4867,7 +4867,7 @@ print_r($response->headers());
 
 If an event type is marked as `true`, then the event webhook will include information about that event.
 
-SendGrids Event Webhook will notify a URL of your choice via HTTP POST with information about events that occur as SendGrid processes your email.
+Twilio SendGrid's Event Webhook will notify a URL of your choice via HTTP POST with information about events that occur as Twilio SendGrid processes your email.
 
 Common uses of this data are to remove unsubscribes, react to spam reports, determine unengaged recipients, identify bounced email addresses, or create advanced analytics of your email program.
 
@@ -4901,7 +4901,7 @@ print_r($response->headers());
 
 If an event type is marked as `true`, then the event webhook will include information about that event.
 
-SendGrids Event Webhook will notify a URL of your choice via HTTP POST with information about events that occur as SendGrid processes your email.
+Twilio SendGrid's Event Webhook will notify a URL of your choice via HTTP POST with information about events that occur as Twilio SendGrid processes your email.
 
 Common uses of this data are to remove unsubscribes, react to spam reports, determine unengaged recipients, identify bounced email addresses, or create advanced analytics of your email program.
 
@@ -4918,7 +4918,7 @@ print_r($response->headers());
 
 **This endpoint allows you to test your event webhook by sending a fake event notification post to the provided URL.**
 
-SendGrids Event Webhook will notify a URL of your choice via HTTP POST with information about events that occur as SendGrid processes your email.
+Twilio SendGrid's Event Webhook will notify a URL of your choice via HTTP POST with information about events that occur as Twilio SendGrid processes your email.
 
 Common uses of this data are to remove unsubscribes, react to spam reports, determine unengaged recipients, identify bounced email addresses, or create advanced analytics of your email program.
 
@@ -4938,7 +4938,7 @@ print_r($response->headers());
 
 **This endpoint allows you to create a new inbound parse setting.**
 
-The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
+The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by Twilio SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
 
 ### POST /user/webhooks/parse/settings
 
@@ -4959,7 +4959,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve all of your current inbound parse settings.**
 
-The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
+The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by Twilio SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
 
 ### GET /user/webhooks/parse/settings
 
@@ -4974,7 +4974,7 @@ print_r($response->headers());
 
 **This endpoint allows you to update a specific inbound parse setting.**
 
-The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
+The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by Twilio SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
 
 ### PATCH /user/webhooks/parse/settings/{hostname}
 
@@ -4995,7 +4995,7 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve a specific inbound parse setting.**
 
-The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
+The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by Twilio SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
 
 ### GET /user/webhooks/parse/settings/{hostname}
 
@@ -5011,7 +5011,7 @@ print_r($response->headers());
 
 **This endpoint allows you to delete a specific inbound parse setting.**
 
-The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
+The inbound parse webhook allows you to have incoming emails parsed, extracting some or all of the content, and then have that content POSTed by Twilio SendGrid to a URL of your choosing. For more information, please see our [User Guide](https://sendgrid.com/docs/API_Reference/Webhooks/parse.html).
 
 ### DELETE /user/webhooks/parse/settings/{hostname}
 
@@ -5027,9 +5027,9 @@ print_r($response->headers());
 
 **This endpoint allows you to retrieve the statistics for your Parse Webhook usage.**
 
-SendGrid's Inbound Parse Webhook allows you to parse the contents and attachments of incoming emails. The Parse API can then POST the parsed emails to a URL that you specify. The Inbound Parse Webhook cannot parse messages greater than 20MB in size, including all attachments.
+Twilio SendGrid's Inbound Parse Webhook allows you to parse the contents and attachments of incoming emails. The Parse API can then POST the parsed emails to a URL that you specify. The Inbound Parse Webhook cannot parse messages greater than 20MB in size, including all attachments.
 
-There are a number of pre-made integrations for the SendGrid Parse Webhook which make processing events easy. You can find these integrations in the [Library Index](https://sendgrid.com/docs/Integrate/libraries.html#-Webhook-Libraries).
+There are a number of pre-made integrations for the Twilio SendGrid Parse Webhook which make processing events easy. You can find these integrations in the [Library Index](https://sendgrid.com/docs/Integrate/libraries.html#-Webhook-Libraries).
 
 ### GET /user/webhooks/parse/stats
 
diff --git a/USE_CASES.md b/USE_CASES.md
index aa28aaa78..bb4d6afbc 100644
--- a/USE_CASES.md
+++ b/USE_CASES.md
@@ -4,12 +4,13 @@ This documentation provides examples for specific use cases. Please [open an iss
 - [Table of Contents](#table-of-contents)
 - [Attachments](#attachments)
 - [Attaching a File from Box](#attaching-a-file-from-box)
-- [Kitchen Sink - an example with all settings used](#kitchen-sink)
+- [Kitchen Sink - an example with all settings used](#kitchen-sink---an-example-with-all-settings-used)
 - [Send an Email to a Single Recipient](#send-an-email-to-a-single-recipient)
 - [Send an Email to Multiple Recipients](#send-an-email-to-multiple-recipients)
 - [Send Multiple Emails to Multiple Recipients](#send-multiple-emails-to-multiple-recipients)
 - [Transactional Templates](#transactional-templates)
 - [Legacy Templates](#legacy-templates)
+- [Send a SMS Message](#send-a-sms-message)
 - [How to Setup a Domain Authentication](#how-to-setup-a-domain-authentication)
 - [How to View Email Statistics](#how-to-view-email-statistics)
 - [Deploying to Heroku](#deploying-to-heroku)
@@ -33,7 +34,7 @@ require 'vendor/autoload.php'; // If you're using Composer (recommended)
 
 $email = new \SendGrid\Mail\Mail();
 $email->setFrom("test@example.com", "Example User");
-$email->setSubject("Sending with SendGrid is Fun");
+$email->setSubject("Sending with Twilio SendGrid is Fun");
 $email->addTo("test@example.com", "Example User");
 $email->addContent("text/plain", "and easy to do anywhere, even with PHP");
 $email->addContent(
@@ -253,7 +254,7 @@ $email = new \SendGrid\Mail\Mail();
 // For a detailed description of each of these settings, 
 // please see the 
 // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
-$email->setSubject("Sending with SendGrid is Fun 2");
+$email->setSubject("Sending with Twilio SendGrid is Fun 2");
 
 $email->addTo("test@example.com", "Example User");
 $email->addTo("test+1@example.com", "Example User1");
@@ -315,7 +316,7 @@ $email->setSendAt(1461775051);
 
 $email->setFrom("test@example.com", "DX");
 
-$email->setGlobalSubject("Sending with SendGrid is Fun and Global 2");
+$email->setGlobalSubject("Sending with Twilio SendGrid is Fun and Global 2");
 
 $email->addContent(
     "text/plain",
@@ -446,7 +447,7 @@ $email = new \SendGrid\Mail\Mail();
 // please see the 
 // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
 $email->setSubject(
-    new \SendGrid\Mail\Subject("Sending with SendGrid is Fun 2")
+    new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun 2")
 );
 
 $email->addTo(new \SendGrid\Mail\To("test@example.com", "Example User"));
@@ -518,7 +519,7 @@ $email->setSendAt(new \SendGrid\Mail\SendAt(1461775051));
 $email->setFrom(new \SendGrid\Mail\From("test@example.com", "DX"));
 
 $email->setGlobalSubject(
-    new \SendGrid\Mail\Subject("Sending with SendGrid is Fun and Global 2")
+    new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun and Global 2")
 );
 
 $plainTextContent = new \SendGrid\Mail\PlainTextContent(
@@ -690,7 +691,7 @@ require 'vendor/autoload.php'; // If you're using Composer (recommended)
 
 $email = new \SendGrid\Mail\Mail(); 
 $email->setFrom("test@example.com", "Example User");
-$email->setSubject("Sending with SendGrid is Fun");
+$email->setSubject("Sending with Twilio SendGrid is Fun");
 $email->addTo("test@example.com", "Example User");
 $email->addContent("text/plain", "and easy to do anywhere, even with PHP");
 $email->addContent(
@@ -721,7 +722,7 @@ require 'vendor/autoload.php'; // If you're using Composer (recommended)
 // https://github.com/sendgrid/sendgrid-php/releases
 
 $from = new \SendGrid\Mail\From("test@example.com", "Example User");
-$subject = new \SendGrid\Mail\Subject("Sending with SendGrid is Fun");
+$subject = new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun");
 $to = new \SendGrid\Mail\To("test@example.com", "Example User");
 $plainTextContent = new \SendGrid\Mail\PlainTextContent(
     "and easy to do anywhere, even with PHP"
@@ -769,7 +770,7 @@ $tos = [
     "test+test3@example.com" => "Example User3"
 ];
 $email->addTos($tos);
-$email->setSubject("Sending with SendGrid is Fun");
+$email->setSubject("Sending with Twilio SendGrid is Fun");
 $email->addContent("text/plain", "and easy to do anywhere, even with PHP");
 $email->addContent(
     "text/html", "<strong>and easy to do anywhere, even with PHP</strong>"
@@ -803,7 +804,7 @@ $tos = [
     new \SendGrid\Mail\To("test+test2@example.com", "Example User2"),
     new \SendGrid\Mail\To("test+test3@example.com", "Example User3")
 ];
-$subject = new \SendGrid\Mail\Subject("Sending with SendGrid is Fun");
+$subject = new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun");
 $plainTextContent = new \SendGrid\Mail\PlainTextContent(
     "and easy to do anywhere, even with PHP"
 );
@@ -1281,19 +1282,80 @@ try {
 }
 ```
 
+<a name="sms"></a>
+# Send a SMS Message
+
+Following are the steps to add Twilio SMS to your app:
+
+**1. Obtain a Free Twilio Account**
+
+Sign up for a free Twilio account [here](https://www.twilio.com/try-twilio?source=sendgrid-php).
+
+**2. Update Your Environment Variables**
+
+You can obtain your Account Sid and Auth Token from [twilio.com/console](https://twilio.com/console).
+
+**__Mac__**
+
+```bash
+echo "export TWILIO_ACCOUNT_SID='YOUR_TWILIO_ACCOUNT_SID'" > twilio.env
+echo "export TWILIO_AUTH_TOKEN='YOUR_TWILIO_AUTH_TOKEN'" >> twilio.env
+echo "twilio.env" >> .gitignore
+source ./twilio.env
+```
+
+**__Windows__**
+
+Temporarily set the environment variable (accessible only during the current CLI session):
+
+```bash
+set TWILIO_ACCOUNT_SID=YOUR_TWILIO_ACCOUNT_SID
+set TWILIO_AUTH_TOKEN=YOUR_TWILIO_AUTH_TOKEN
+```
+
+Permanently set the environment variable (accessible in all subsequent CLI sessions):
+
+```bash
+setx TWILIO_ACCOUNT_SID "YOUR_TWILIO_ACCOUNT_SID"
+setx TWILIO_AUTH_TOKEN "YOUR_TWILIO_AUTH_TOKEN"
+```
+
+**3. Install the Twilio Helper Library**
+
+`composer require twilio/sdk`
+
+Then, you can execute the following code.
+
+```php
+<?php
+$sid = getenv('TWILIO_ACCOUNT_SID');
+$token = getenv('TWILIO_AUTH_TOKEN');
+
+$client = new Twilio\Rest\Client($sid, $token);
+$message = $client->messages->create(
+  '8881231234', // Text this number
+  array(
+    'from' => '9991231234', // From a valid Twilio number
+    'body' => 'Hello from Twilio!'
+  )
+);
+```
+
+For more information, please visit the [Twilio SMS PHP documentation](https://www.twilio.com/docs/sms/quickstart/python).
+
 <a name="domain-authentication"></a>
 # How to Setup a Domain Authentication
 
 You can find documentation for how to setup a domain authentication via the UI [here](https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/) and via API [here](https://github.com/sendgrid/sendgrid-php/blob/master/USAGE.md#sender-authentication).
 
-Find more information about all of SendGrid's authentication related documentation [here](https://sendgrid.com/docs/ui/account-and-settings/).
+Find more information about all of Twilio SendGrid's authentication related documentation [here](https://sendgrid.com/docs/ui/account-and-settings/).
 
 <a name="email-stats"></a>
 # How to View Email Statistics
 
 You can find documentation for how to view your email statistics via the UI [here](https://app.example.com/statistics) and via API [here](https://github.com/sendgrid/sendgrid-php/blob/master/USAGE.md#stats).
 
-Alternatively, we can post events to a URL of your choice via our [Event Webhook](https://example.com/docs/API_Reference/Webhooks/event.html) about events that occur as SendGrid processes your email.
+Alternatively, we can post events to a URL of your choice via our [Event Webhook](https://example.com/docs/API_Reference/Webhooks/event.html) about events that occur as Twilio SendGrid processes your email.
 
 <a name="heroku"></a>
 # Deploying to Heroku
diff --git a/composer.json b/composer.json
index ac8834b30..375122212 100644
--- a/composer.json
+++ b/composer.json
@@ -1,12 +1,14 @@
 {
   "name": "sendgrid/sendgrid",
-  "description": "This library allows you to quickly and easily send emails through SendGrid using PHP.",
+  "description": "This library allows you to quickly and easily send emails through Twilio SendGrid using PHP.",
   "version": "7.2.1",
   "homepage": "http://github.com/sendgrid/sendgrid-php",
   "license": "MIT",
   "keywords": [
     "SendGrid",
     "sendgrid",
+    "Twilio SendGrid",
+    "twilio sendgrid",
     "email",
     "send",
     "grid"
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 655c14c9b..125579ebd 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -12,7 +12,7 @@ RUN chmod +x ./install.sh && sync && \
     ./install.sh && \
     rm ./install.sh
 
-# set up default sendgrid env
+# set up default Twilio SendGrid env
 WORKDIR /root
 
 RUN mkdir sendgrid-php
diff --git a/docker/README.md b/docker/README.md
index 95959fa4f..7a2b4cbcb 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -2,7 +2,7 @@ Use Docker to easily try out or contribute to the sendgrid-php library.
 
 This Docker image contains:
  - PHP 7.1.16
- - A running instance of [Stoplight.io's Prism](https://stoplight.io/platform/prism/), which lets you try out the SendGrid API without actually sending email
+ - A running instance of [Stoplight.io's Prism](https://stoplight.io/platform/prism/), which lets you try out the Twilio SendGrid API without actually sending email
  - A mirrored copy of sendgrid-php so that you may develop locally and then run the tests within the Docker container.
 
 # Table of Contents
@@ -27,7 +27,7 @@ This Docker image contains:
   - `docker image build --tag="sendgrid/php7" ./docker`
   - `docker run -itd --name="sendgrid_php7" -v $(pwd):/root/sendgrid-php sendgrid/php7 /bin/bash`
 5. Run the tests within the Docker container
-  - `sudo docker exec -it sendgrid_php7 /bin/bash -c 'cd sendgrid-php/test; ../vendor/bin/phpunit . --filter test*; exec "${SHELL:-sh}"'`
+  - `docker exec -it sendgrid_php7 /bin/bash -c 'cd sendgrid-php/test; ../vendor/bin/phpunit . --filter test*; exec "${SHELL:-sh}"'`
 
 Now you can continue development locally, and run `../vendor/bin/phpunit . --filter test*` inside of the container to test. Replace `test*` with the name of a particular test if you do not wish to run the entire suite of tests.
 
diff --git a/examples/helpers/mail/example.php b/examples/helpers/mail/example.php
index ac5709b4c..8b1b9ae07 100644
--- a/examples/helpers/mail/example.php
+++ b/examples/helpers/mail/example.php
@@ -17,7 +17,7 @@ function helloEmail()
 {
     try {
         $from = new From(null, "test@example.com");
-        $subject = "Hello World from the SendGrid PHP Library";
+        $subject = "Hello World from the Twilio SendGrid PHP Library";
         $to = new To(null, "test@example.com");
         $content = new Content("text/plain", "some text here");
         $mail = new Mail($from, $to, $subject, $content);
@@ -37,7 +37,7 @@ function helloEmail()
 function kitchenSink()
 {
     $from = new Email("DX", "test@example.com");
-    $subject = "Hello World from the SendGrid PHP Library";
+    $subject = "Hello World from the Twilio SendGrid PHP Library";
     $to = new Email("Example User", "test1@example.com");
     $content = new Content("text/plain", "some text here");
 
@@ -53,7 +53,7 @@ function kitchenSink()
     $mail->personalization[0]->addBcc($email5);
     $email6 = new Email("Example User", "test6@example.com");
     $mail->personalization[0]->addBcc($email6);
-    $mail->personalization[0]->setSubject("Hello World from the SendGrid PHP Library");
+    $mail->personalization[0]->setSubject("Hello World from the Twilio SendGrid PHP Library");
     $mail->personalization[0]->addHeader("X-Test", "test");
     $mail->personalization[0]->addHeader("X-Mock", "true");
     $mail->personalization[0]->addSubstitution("%name%", "Example User");
@@ -76,7 +76,7 @@ function kitchenSink()
     $personalization1->addBcc($email11);
     $email12 = new Email("Example User", "test12@example.com");
     $personalization1->addBcc($email12);
-    $personalization1->setSubject("Hello World from the SendGrid PHP Library");
+    $personalization1->setSubject("Hello World from the Twilio SendGrid PHP Library");
     $personalization1->addHeader("X-Test", "test");
     $personalization1->addHeader("X-Mock", "true");
     $personalization1->addSubstitution("%name%", "Example User");
diff --git a/examples/mail/mail.php b/examples/mail/mail.php
index ce594c00d..75d1dd0ed 100644
--- a/examples/mail/mail.php
+++ b/examples/mail/mail.php
@@ -92,8 +92,8 @@
     }, 
     "footer": {
       "enable": true, 
-      "html": "<p>Thanks</br>The SendGrid Team</p>", 
-      "text": "Thanks,/n The SendGrid Team"
+      "html": "<p>Thanks</br>The Twilio SendGrid Team</p>", 
+      "text": "Thanks,/n The Twilio SendGrid Team"
     }, 
     "sandbox_mode": {
       "enable": false
diff --git a/lib/SendGrid.php b/lib/SendGrid.php
index ddda067de..dbdbe3927 100644
--- a/lib/SendGrid.php
+++ b/lib/SendGrid.php
@@ -1,20 +1,20 @@
 <?php
 /**
  * This library allows you to quickly and easily send emails through
- * SendGrid using PHP.
+ * Twilio SendGrid using PHP.
  *
  * PHP Version - 5.6, 7.0, 7.1, 7.2
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
  */
 
 /**
- * This class is the interface to the SendGrid Web API
+ * This class is the interface to the Twilio SendGrid Web API
  *
  * @package SendGrid\Mail
  */
@@ -33,7 +33,7 @@ class SendGrid
     /**
      * Setup the HTTP Client
      *
-     * @param string $apiKey  Your SendGrid API Key.
+     * @param string $apiKey  Your Twilio SendGrid API Key.
      * @param array  $options An array of options, currently only "host", "curl" and
      *                        "impersonateSubuser" are implemented.
      */
diff --git a/lib/contacts/Recipient.php b/lib/contacts/Recipient.php
index 33a44854d..7eb00be5f 100644
--- a/lib/contacts/Recipient.php
+++ b/lib/contacts/Recipient.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Contacts
  * @author    Kraig Hufstedler <kraigory@gmail.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -72,7 +72,7 @@ public function getEmail()
     }
 
     /**
-     * Return an array representing a recipient object for the SendGrid API
+     * Return an array representing a recipient object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/contacts/RecipientForm.php b/lib/contacts/RecipientForm.php
index 7f3fc5922..18bbc538f 100644
--- a/lib/contacts/RecipientForm.php
+++ b/lib/contacts/RecipientForm.php
@@ -7,7 +7,7 @@
  *
  * @package   SendGrid\Contacts
  * @author    Kraig Hufstedler <kraigory@gmail.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/loader.php b/lib/loader.php
index 0be04856f..9e6a74910 100644
--- a/lib/loader.php
+++ b/lib/loader.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/Asm.php b/lib/mail/Asm.php
index 85c0564d2..c5f36435c 100644
--- a/lib/mail/Asm.php
+++ b/lib/mail/Asm.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -71,7 +71,7 @@ public function setGroupId($group_id)
         } else {
             if (!is_int($group_id)) {
                 throw new TypeException(
-                    '$group_id must be an instance of SendGrid\Mail\GroupId or of type int.'
+                    '$group_id must be an instance of Twilio SendGrid\Mail\GroupId or of type int.'
                 );
             }
             $this->group_id = new GroupId($group_id);
@@ -112,7 +112,7 @@ public function setGroupsToDisplay($groups_to_display)
         } else {
             if (!is_array($groups_to_display)) {
                 throw new TypeException(
-                    '$groups_to_display must be an instance of SendGrid\Mail\GroupsToDisplay or of type array.'
+                    '$groups_to_display must be an instance of Twilio SendGrid\Mail\GroupsToDisplay or of type array.'
                 );
             }
             $this->groups_to_display = new GroupsToDisplay($groups_to_display);
@@ -131,7 +131,7 @@ public function getGroupsToDisplay()
     }
 
     /**
-     * Return an array representing a Asm object for the SendGrid API
+     * Return an array representing a Asm object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/Attachment.php b/lib/mail/Attachment.php
index 994f545af..632781cb6 100644
--- a/lib/mail/Attachment.php
+++ b/lib/mail/Attachment.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -213,7 +213,7 @@ private function isBase64($string)
     }
 
     /**
-     * Return an array representing a Attachment object for the SendGrid API
+     * Return an array representing a Attachment object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/BatchId.php b/lib/mail/BatchId.php
index 716905e09..508e60c5e 100644
--- a/lib/mail/BatchId.php
+++ b/lib/mail/BatchId.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -64,7 +64,7 @@ public function getBatchId()
     }
 
     /**
-     * Return an array representing a BatchId object for the SendGrid API
+     * Return an array representing a BatchId object for the Twilio SendGrid API
      *
      * @return null|string
      */
diff --git a/lib/mail/Bcc.php b/lib/mail/Bcc.php
index 1fc32537b..88a588c99 100644
--- a/lib/mail/Bcc.php
+++ b/lib/mail/Bcc.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/BccSettings.php b/lib/mail/BccSettings.php
index 81416a6b7..1841f0191 100644
--- a/lib/mail/BccSettings.php
+++ b/lib/mail/BccSettings.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -99,7 +99,7 @@ public function getEmail()
     }
 
     /**
-     * Return an array representing a BccSettings object for the SendGrid API
+     * Return an array representing a BccSettings object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/BypassListManagement.php b/lib/mail/BypassListManagement.php
index fca44b0da..9b6762d25 100644
--- a/lib/mail/BypassListManagement.php
+++ b/lib/mail/BypassListManagement.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/Category.php b/lib/mail/Category.php
index 99bc2459a..ce94ddc64 100644
--- a/lib/mail/Category.php
+++ b/lib/mail/Category.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -66,7 +66,7 @@ public function getCategory()
     }
 
     /**
-     * Return an array representing a Category object for the SendGrid API
+     * Return an array representing a Category object for the Twilio SendGrid API
      *
      * @return string
      */
diff --git a/lib/mail/Cc.php b/lib/mail/Cc.php
index 945f4f6e3..70485ee51 100644
--- a/lib/mail/Cc.php
+++ b/lib/mail/Cc.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/ClickTracking.php b/lib/mail/ClickTracking.php
index 9ab68dfb1..abce412dc 100644
--- a/lib/mail/ClickTracking.php
+++ b/lib/mail/ClickTracking.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -95,7 +95,7 @@ public function getEnableText()
     }
 
     /**
-     * Return an array representing a ClickTracking object for the SendGrid API
+     * Return an array representing a ClickTracking object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/Content.php b/lib/mail/Content.php
index c225cd015..62417d5c0 100644
--- a/lib/mail/Content.php
+++ b/lib/mail/Content.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -99,7 +99,7 @@ public function getValue()
     }
 
     /**
-     * Return an array representing a Contact object for the SendGrid API
+     * Return an array representing a Contact object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/CustomArg.php b/lib/mail/CustomArg.php
index 31a876e87..031f035b4 100644
--- a/lib/mail/CustomArg.php
+++ b/lib/mail/CustomArg.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -100,7 +100,7 @@ public function getValue()
     }
 
     /**
-     * Return an array representing a CustomArg object for the SendGrid API
+     * Return an array representing a CustomArg object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/EmailAddress.php b/lib/mail/EmailAddress.php
index 14314603e..88299f5bc 100644
--- a/lib/mail/EmailAddress.php
+++ b/lib/mail/EmailAddress.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -203,7 +203,7 @@ public function getSubject()
     }
 
     /**
-     * Return an array representing a EmailAddress object for the SendGrid API
+     * Return an array representing a EmailAddress object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/Footer.php b/lib/mail/Footer.php
index f60013f9e..92d2f4b97 100644
--- a/lib/mail/Footer.php
+++ b/lib/mail/Footer.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -124,7 +124,7 @@ public function getHtml()
     }
 
     /**
-     * Return an array representing a Footer object for the SendGrid API
+     * Return an array representing a Footer object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/From.php b/lib/mail/From.php
index 3fc5e6cac..602000af8 100644
--- a/lib/mail/From.php
+++ b/lib/mail/From.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/Ganalytics.php b/lib/mail/Ganalytics.php
index 5fc9a296f..2d5118839 100644
--- a/lib/mail/Ganalytics.php
+++ b/lib/mail/Ganalytics.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -228,7 +228,7 @@ public function getCampaignName()
     }
 
     /**
-     * Return an array representing a Ganalytics object for the SendGrid API
+     * Return an array representing a Ganalytics object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/GroupId.php b/lib/mail/GroupId.php
index 4aaee2139..64c52a709 100644
--- a/lib/mail/GroupId.php
+++ b/lib/mail/GroupId.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -62,7 +62,7 @@ public function getGroupId()
     }
 
     /**
-     * Return an array representing a GroupId object for the SendGrid API
+     * Return an array representing a GroupId object for the Twilio SendGrid API
      *
      * @return int
      */
diff --git a/lib/mail/GroupsToDisplay.php b/lib/mail/GroupsToDisplay.php
index 2f0761752..7ed1120ba 100644
--- a/lib/mail/GroupsToDisplay.php
+++ b/lib/mail/GroupsToDisplay.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -76,7 +76,7 @@ public function getGroupsToDisplay()
     }
 
     /**
-     * Return an array representing a GroupsToDisplay object for the SendGrid API
+     * Return an array representing a GroupsToDisplay object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/Header.php b/lib/mail/Header.php
index d67937d19..aa901cff2 100644
--- a/lib/mail/Header.php
+++ b/lib/mail/Header.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -97,7 +97,7 @@ public function getValue()
     }
 
     /**
-     * Return an array representing a Header object for the SendGrid API
+     * Return an array representing a Header object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/HtmlContent.php b/lib/mail/HtmlContent.php
index a254090a5..b8d6e9b88 100644
--- a/lib/mail/HtmlContent.php
+++ b/lib/mail/HtmlContent.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/IpPoolName.php b/lib/mail/IpPoolName.php
index 85114350e..5e0cdebe1 100644
--- a/lib/mail/IpPoolName.php
+++ b/lib/mail/IpPoolName.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -66,7 +66,7 @@ public function getIpPoolName()
     }
 
     /**
-     * Return an array representing a IpPoolName object for the SendGrid API
+     * Return an array representing a IpPoolName object for the Twilio SendGrid API
      *
      * @return string
      */
diff --git a/lib/mail/Mail.php b/lib/mail/Mail.php
index 10951ea49..86a5128da 100644
--- a/lib/mail/Mail.php
+++ b/lib/mail/Mail.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -1867,7 +1867,7 @@ public function setGanalytics(
     }
 
     /**
-     * Return an array representing a request object for the SendGrid API
+     * Return an array representing a request object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/MailSettings.php b/lib/mail/MailSettings.php
index 49c5b9e98..8ee56eae8 100644
--- a/lib/mail/MailSettings.php
+++ b/lib/mail/MailSettings.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -252,7 +252,7 @@ public function getSpamCheck()
     }
 
     /**
-     * Return an array representing a MailSettings object for the SendGrid API
+     * Return an array representing a MailSettings object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/MimeType.php b/lib/mail/MimeType.php
index 4939f310c..6d3387233 100644
--- a/lib/mail/MimeType.php
+++ b/lib/mail/MimeType.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/OpenTracking.php b/lib/mail/OpenTracking.php
index 97e6b2ed3..f3204fe9a 100644
--- a/lib/mail/OpenTracking.php
+++ b/lib/mail/OpenTracking.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -105,7 +105,7 @@ public function getSubstitutionTag()
     }
 
     /**
-     * Return an array representing a OpenTracking object for the SendGrid API
+     * Return an array representing a OpenTracking object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/Personalization.php b/lib/mail/Personalization.php
index cc96c1b96..711a8241b 100644
--- a/lib/mail/Personalization.php
+++ b/lib/mail/Personalization.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -278,7 +278,7 @@ public function getHasDynamicTemplate()
     }
 
     /**
-     * Return an array representing a Personalization object for the SendGrid API
+     * Return an array representing a Personalization object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/PlainTextContent.php b/lib/mail/PlainTextContent.php
index b81661807..a6acbefaa 100644
--- a/lib/mail/PlainTextContent.php
+++ b/lib/mail/PlainTextContent.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/README.md b/lib/mail/README.md
index fec01c65d..87a0997c6 100644
--- a/lib/mail/README.md
+++ b/lib/mail/README.md
@@ -1,4 +1,4 @@
-**This helper allows you to quickly and easily build a Mail object for sending email through SendGrid.**
+**This helper allows you to quickly and easily build a Mail object for sending email through Twilio SendGrid.**
 
 # Quick Start
 
diff --git a/lib/mail/ReplyTo.php b/lib/mail/ReplyTo.php
index 3f7107036..3f4e10db8 100644
--- a/lib/mail/ReplyTo.php
+++ b/lib/mail/ReplyTo.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/SandBoxMode.php b/lib/mail/SandBoxMode.php
index 6b83494d2..ab7a1fb42 100644
--- a/lib/mail/SandBoxMode.php
+++ b/lib/mail/SandBoxMode.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -62,7 +62,7 @@ public function getEnable()
     }
 
     /**
-     * Return an array representing a SandBoxMode object for the SendGrid API
+     * Return an array representing a SandBoxMode object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/Section.php b/lib/mail/Section.php
index cbf57dc4c..eb2e24677 100644
--- a/lib/mail/Section.php
+++ b/lib/mail/Section.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -96,7 +96,7 @@ public function getValue()
     }
 
     /**
-     * Return an array representing a Section object for the SendGrid API
+     * Return an array representing a Section object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/SendAt.php b/lib/mail/SendAt.php
index 7785cb0a2..1dbb3f104 100644
--- a/lib/mail/SendAt.php
+++ b/lib/mail/SendAt.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -91,7 +91,7 @@ public function getSendAt()
     }
 
     /**
-     * Return an array representing a SendAt object for the SendGrid API
+     * Return an array representing a SendAt object for the Twilio SendGrid API
      *
      * @return int
      */
diff --git a/lib/mail/SpamCheck.php b/lib/mail/SpamCheck.php
index f8af03558..4173c7781 100644
--- a/lib/mail/SpamCheck.php
+++ b/lib/mail/SpamCheck.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -141,7 +141,7 @@ public function getPostToUrl()
     }
 
     /**
-     * Return an array representing a SpamCheck object for the SendGrid API
+     * Return an array representing a SpamCheck object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/Subject.php b/lib/mail/Subject.php
index 38f6e9c8d..94b406664 100644
--- a/lib/mail/Subject.php
+++ b/lib/mail/Subject.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -63,7 +63,7 @@ public function getSubject()
     }
 
     /**
-     * Return an array representing a Subject object for the SendGrid API
+     * Return an array representing a Subject object for the Twilio SendGrid API
      *
      * @return string
      */
diff --git a/lib/mail/SubscriptionTracking.php b/lib/mail/SubscriptionTracking.php
index d6d87a2f7..87fb15ae4 100644
--- a/lib/mail/SubscriptionTracking.php
+++ b/lib/mail/SubscriptionTracking.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -207,7 +207,7 @@ public function getSubstitutionTag()
 
     /**
      * Return an array representing a SubscriptionTracking object
-     * for the SendGrid API
+     * for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/Substitution.php b/lib/mail/Substitution.php
index a9929f726..c18e080b9 100644
--- a/lib/mail/Substitution.php
+++ b/lib/mail/Substitution.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -101,7 +101,7 @@ public function getValue()
     }
 
     /**
-     * Return an array representing a Substitution object for the SendGrid API
+     * Return an array representing a Substitution object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/mail/TemplateId.php b/lib/mail/TemplateId.php
index 0eb08ab7a..890de3faf 100644
--- a/lib/mail/TemplateId.php
+++ b/lib/mail/TemplateId.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -75,7 +75,7 @@ public function getTemplateId()
     }
 
     /**
-     * Return an array representing a TemplateId object for the SendGrid API
+     * Return an array representing a TemplateId object for the Twilio SendGrid API
      *
      * @return string
      */
diff --git a/lib/mail/To.php b/lib/mail/To.php
index 247eb8731..d9e3537a4 100644
--- a/lib/mail/To.php
+++ b/lib/mail/To.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/lib/mail/TrackingSettings.php b/lib/mail/TrackingSettings.php
index 135a558cf..271ec0652 100644
--- a/lib/mail/TrackingSettings.php
+++ b/lib/mail/TrackingSettings.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -231,7 +231,7 @@ public function getGanalytics()
     }
 
     /**
-     * Return an array representing a TrackingSettings object for the SendGrid API
+     * Return an array representing a TrackingSettings object for the Twilio SendGrid API
      *
      * @return null|array
      */
diff --git a/lib/stats/Stats.php b/lib/stats/Stats.php
index cb6c30cb8..39ae0ad98 100644
--- a/lib/stats/Stats.php
+++ b/lib/stats/Stats.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Mail
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid 
diff --git a/test/BaseTestClass.php b/test/BaseTestClass.php
index 67fe9c728..a3fe54e9f 100644
--- a/test/BaseTestClass.php
+++ b/test/BaseTestClass.php
@@ -7,7 +7,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid 
@@ -26,9 +26,9 @@
  */
 class BaseTestClass extends TestCase
 {
-    // @var string SendGrid API Key
+    // @var string Twilio SendGrid API Key
     protected static $apiKey;
-    // @var SendGrid SendGrid client
+    // @var SendGrid Twilio SendGrid client
     protected static $sg;
 
     /**
diff --git a/test/integration/Mail/MailSendTest.php b/test/integration/Mail/MailSendTest.php
index 1f3840a5a..30e299ad0 100644
--- a/test/integration/Mail/MailSendTest.php
+++ b/test/integration/Mail/MailSendTest.php
@@ -59,8 +59,8 @@ public function testMailSendPostMethod()
     },
     "footer": {
       "enable": true,
-      "html": "<p>Thanks</br>The SendGrid Team</p>",
-      "text": "Thanks,/n The SendGrid Team"
+      "html": "<p>Thanks</br>The Twilio SendGrid Team</p>",
+      "text": "Thanks,/n The Twilio SendGrid Team"
     },
     "sandbox_mode": {
       "enable": false
diff --git a/test/unit/AttachmentsTest.php b/test/unit/AttachmentsTest.php
index 2370d9b7a..007eba8f0 100644
--- a/test/unit/AttachmentsTest.php
+++ b/test/unit/AttachmentsTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -26,7 +26,7 @@ class AttachmentsTests extends TestCase
     public function testWillEncodeNonBase64String() {
 
         $attachment = new Attachment();
-        $testString = 'Sendgrid is awesome!';
+        $testString = 'Twilio Sendgrid is awesome!';
 
         $attachment->setContent($testString);
 
@@ -36,7 +36,7 @@ public function testWillEncodeNonBase64String() {
     public function testWillNotEncodeBase64String() {
 
         $attachment = new Attachment();
-        $testString = base64_encode('Sendgrid is awesome!');
+        $testString = base64_encode('Twilio Sendgrid is awesome!');
 
         $attachment->setContent($testString);
 
diff --git a/test/unit/DynamicTemplateTest.php b/test/unit/DynamicTemplateTest.php
index 2ebecb49c..d07d97d53 100644
--- a/test/unit/DynamicTemplateTest.php
+++ b/test/unit/DynamicTemplateTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -48,7 +48,7 @@ class DynamicTemplateTest extends BaseTestClass
     "email": "test@example.com",
     "name": "DX"
   },
-  "subject": "Sending with SendGrid is Fun and Global 2",
+  "subject": "Sending with Twilio SendGrid is Fun and Global 2",
   "personalizations": [
     {
       "bcc": [
@@ -133,7 +133,7 @@ class DynamicTemplateTest extends BaseTestClass
     "email": "test@example.com",
     "name": "DX"
   },
-  "subject": "Sending with SendGrid is Fun and Global 2",
+  "subject": "Sending with Twilio SendGrid is Fun and Global 2",
   "personalizations": [
     {
       "bcc": [
@@ -204,7 +204,7 @@ public function testKitchenSinkExampleWithoutObjectsAndLegacyTemplate()
         // For a detailed description of each of these settings,
         // please see the
         // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
-        $email->setSubject("Sending with SendGrid is Fun 2");
+        $email->setSubject("Sending with Twilio SendGrid is Fun 2");
 
         $email->addTo("test@example.com", "Example User");
         $email->addTo("test+1@example.com", "Example User1");
@@ -240,7 +240,7 @@ public function testKitchenSinkExampleWithoutObjectsAndLegacyTemplate()
 
         $email->setFrom("test@example.com", "DX");
 
-        $email->setGlobalSubject("Sending with SendGrid is Fun and Global 2");
+        $email->setGlobalSubject("Sending with Twilio SendGrid is Fun and Global 2");
 
         $email->addContent(
             "text/plain",
@@ -273,7 +273,7 @@ public function testKitchenSinkExampleWithoutObjectsAndDynamicTemplate()
         // For a detailed description of each of these settings,
         // please see the
         // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
-        $email->setSubject("Sending with SendGrid is Fun 2");
+        $email->setSubject("Sending with Twilio SendGrid is Fun 2");
 
         $email->addTo("test@example.com", "Example User");
         $email->addTo("test+1@example.com", "Example User1");
@@ -309,7 +309,7 @@ public function testKitchenSinkExampleWithoutObjectsAndDynamicTemplate()
 
         $email->setFrom("test@example.com", "DX");
 
-        $email->setGlobalSubject("Sending with SendGrid is Fun and Global 2");
+        $email->setGlobalSubject("Sending with Twilio SendGrid is Fun and Global 2");
 
         $email->addContent(
             "text/plain",
@@ -343,7 +343,7 @@ public function testKitchenSinkExampleWithObjectsAndLegacyTemplate()
         // please see the
         // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
         $email->setSubject(
-            new \SendGrid\Mail\Subject("Sending with SendGrid is Fun 2")
+            new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun 2")
         );
 
         $email->addTo(new \SendGrid\Mail\To("test@example.com", "Example User"));
@@ -387,7 +387,7 @@ public function testKitchenSinkExampleWithObjectsAndLegacyTemplate()
         $email->setFrom(new \SendGrid\Mail\From("test@example.com", "DX"));
 
         $email->setGlobalSubject(
-            new \SendGrid\Mail\Subject("Sending with SendGrid is Fun and Global 2")
+            new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun and Global 2")
         );
 
         $plainTextContent = new \SendGrid\Mail\PlainTextContent(
diff --git a/test/unit/FilesExistTest.php b/test/unit/FilesExistTest.php
index c463a4e1c..0ce586c30 100644
--- a/test/unit/FilesExistTest.php
+++ b/test/unit/FilesExistTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/test/unit/KitchenSinkTest.php b/test/unit/KitchenSinkTest.php
index 19db60ef9..28d047a0f 100644
--- a/test/unit/KitchenSinkTest.php
+++ b/test/unit/KitchenSinkTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -197,7 +197,7 @@ class KitchenSinkTest extends BaseTestClass
     "%section3%": "Substitution for Section 3 Tag",
     "%section4%": "Substitution for Section 4 Tag"
   },
-  "subject": "Sending with SendGrid is Fun and Global 2",
+  "subject": "Sending with Twilio SendGrid is Fun and Global 2",
   "template_id": "d-13b8f94fbcae4ec6b75270d6cb59f932",
   "tracking_settings": {
     "click_tracking": {
@@ -395,7 +395,7 @@ class KitchenSinkTest extends BaseTestClass
     "%section3%": "Substitution for Section 3 Tag",
     "%section4%": "Substitution for Section 4 Tag"
   },
-  "subject": "Sending with SendGrid is Fun and Global 2",
+  "subject": "Sending with Twilio SendGrid is Fun and Global 2",
   "template_id": "13b8f94f-bcae-4ec6-b752-70d6cb59f932",
   "tracking_settings": {
     "click_tracking": {
@@ -434,7 +434,7 @@ public function testKitchenSinkExampleWithoutObjects()
         // For a detailed description of each of these settings,
         // please see the
         // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
-        $email->setSubject("Sending with SendGrid is Fun 2");
+        $email->setSubject("Sending with Twilio SendGrid is Fun 2");
 
         $email->addTo("test@example.com", "Example User");
         $email->addTo("test+1@example.com", "Example User1");
@@ -490,7 +490,7 @@ public function testKitchenSinkExampleWithoutObjects()
 
         $email->setFrom("test@example.com", "DX");
 
-        $email->setGlobalSubject("Sending with SendGrid is Fun and Global 2");
+        $email->setGlobalSubject("Sending with Twilio SendGrid is Fun and Global 2");
 
         $email->addContent(
             "text/plain",
@@ -606,7 +606,7 @@ public function testKitchenSinkExampleWithoutObjectsWithDynamicTemplates()
         // For a detailed description of each of these settings,
         // please see the
         // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
-        $email->setSubject("Sending with SendGrid is Fun 2");
+        $email->setSubject("Sending with Twilio SendGrid is Fun 2");
 
         $email->addTo("test@example.com", "Example User");
         $email->addTo("test+1@example.com", "Example User1");
@@ -665,7 +665,7 @@ public function testKitchenSinkExampleWithoutObjectsWithDynamicTemplates()
 
         $email->setFrom("test@example.com", "DX");
 
-        $email->setGlobalSubject("Sending with SendGrid is Fun and Global 2");
+        $email->setGlobalSubject("Sending with Twilio SendGrid is Fun and Global 2");
 
         $email->addContent(
             "text/plain",
@@ -783,7 +783,7 @@ public function testKitchenSinkExampleWithObjects()
         // please see the
         // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
         $email->setSubject(
-            new \SendGrid\Mail\Subject("Sending with SendGrid is Fun 2")
+            new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun 2")
         );
 
         $email->addTo(new \SendGrid\Mail\To("test@example.com", "Example User"));
@@ -847,7 +847,7 @@ public function testKitchenSinkExampleWithObjects()
         $email->setFrom(new \SendGrid\Mail\From("test@example.com", "DX"));
 
         $email->setGlobalSubject(
-            new \SendGrid\Mail\Subject("Sending with SendGrid is Fun and Global 2")
+            new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun and Global 2")
         );
 
         $plainTextContent = new \SendGrid\Mail\PlainTextContent(
@@ -1008,7 +1008,7 @@ public function testKitchenSinkExampleWithObjectsWithDynamicTemplate()
         // please see the
         // [documentation](https://sendgrid.com/docs/API_Reference/api_v3.html).
         $email->setSubject(
-            new \SendGrid\Mail\Subject("Sending with SendGrid is Fun 2")
+            new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun 2")
         );
 
         $email->addTo(new \SendGrid\Mail\To("test@example.com", "Example User"));
@@ -1077,7 +1077,7 @@ public function testKitchenSinkExampleWithObjectsWithDynamicTemplate()
         $email->setFrom(new \SendGrid\Mail\From("test@example.com", "DX"));
 
         $email->setGlobalSubject(
-            new \SendGrid\Mail\Subject("Sending with SendGrid is Fun and Global 2")
+            new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun and Global 2")
         );
 
         $plainTextContent = new \SendGrid\Mail\PlainTextContent(
diff --git a/test/unit/MailGetContentsTest.php b/test/unit/MailGetContentsTest.php
index 55e9d5ad6..cda8337f5 100644
--- a/test/unit/MailGetContentsTest.php
+++ b/test/unit/MailGetContentsTest.php
@@ -27,7 +27,7 @@ public function testWillReturnPlainContentFirst()
     {
         $email = new \SendGrid\Mail\Mail();
         $email->setFrom("test@example.com", null);
-        $email->setSubject("Hello World from the SendGrid PHP Library");
+        $email->setSubject("Hello World from the Twilio SendGrid PHP Library");
         $email->addTo("test@example.com", "Test Person");
 
         $email->addContent("text/html", "<p>some text here</p>");
diff --git a/test/unit/MailHelperTest.php b/test/unit/MailHelperTest.php
index af17db239..7a3487fb0 100644
--- a/test/unit/MailHelperTest.php
+++ b/test/unit/MailHelperTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -78,7 +78,7 @@ public function testEmailName()
      */
     public function testEmailAddress()
     {
-		$email = new EmailAddress();
-    	$email->setEmailAddress('test@example.com@wrong');
+        $email = new EmailAddress();
+        $email->setEmailAddress('test@example.com@wrong');
     }    
 }
diff --git a/test/unit/MultipleEmailToMultipleRecipientsTest.php b/test/unit/MultipleEmailToMultipleRecipientsTest.php
index 2464e85ff..e168fd532 100644
--- a/test/unit/MultipleEmailToMultipleRecipientsTest.php
+++ b/test/unit/MultipleEmailToMultipleRecipientsTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
diff --git a/test/unit/SendGridTest.php b/test/unit/SendGridTest.php
index 986af9cb8..3e0d5f34e 100644
--- a/test/unit/SendGridTest.php
+++ b/test/unit/SendGridTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -15,7 +15,7 @@
 namespace SendGrid\Tests;
 
 /**
- * This class tests the SendGrid Client
+ * This class tests the Twilio SendGrid Client
  *
  * @package SendGrid\Tests
  */
@@ -37,7 +37,7 @@ public function testVersionIsCorrect()
     }
 
     /**
-     * Test that we can connect to the SendGrid API
+     * Test that we can connect to the Twilio SendGrid API
      */
     public function testCanConnectToSendGridApi()
     {
diff --git a/test/unit/SingleEmailToASingleRecipientTest.php b/test/unit/SingleEmailToASingleRecipientTest.php
index f7b62c5a6..ad9053d69 100644
--- a/test/unit/SingleEmailToASingleRecipientTest.php
+++ b/test/unit/SingleEmailToASingleRecipientTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -34,7 +34,7 @@ class SingleEmailToASingleRecipientTest extends BaseTestClass
             ]
         }
     ],
-    "subject": "Sending with SendGrid is Fun",
+    "subject": "Sending with Twilio SendGrid is Fun",
     "from": {
         "email": "test@example.com",
         "name": "Example User"
@@ -58,7 +58,7 @@ class SingleEmailToASingleRecipientTest extends BaseTestClass
     public function testWithObjects()
     {
         $from = new \SendGrid\Mail\From("test@example.com", "Example User");
-        $subject = new \SendGrid\Mail\Subject("Sending with SendGrid is Fun");
+        $subject = new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun");
         $to = new \SendGrid\Mail\To("test@example.com", "Example User");
         $plainTextContent = new \SendGrid\Mail\PlainTextContent(
             "and easy to do anywhere, even with PHP"
@@ -85,7 +85,7 @@ public function testWithoutObjects()
     {
         $email = new \SendGrid\Mail\Mail();
         $email->setFrom("test@example.com", "Example User");
-        $email->setSubject("Sending with SendGrid is Fun");
+        $email->setSubject("Sending with Twilio SendGrid is Fun");
         $email->addTo("test@example.com", "Example User");
         $email->addContent("text/plain", "and easy to do anywhere, even with PHP");
         $email->addContent(
diff --git a/test/unit/SingleEmailToMultipleRecipientsTest.php b/test/unit/SingleEmailToMultipleRecipientsTest.php
index e2d976e86..40b1b8330 100644
--- a/test/unit/SingleEmailToMultipleRecipientsTest.php
+++ b/test/unit/SingleEmailToMultipleRecipientsTest.php
@@ -6,7 +6,7 @@
  *
  * @package   SendGrid\Tests
  * @author    Elmer Thomas <dx@sendgrid.com>
- * @copyright 2018 SendGrid
+ * @copyright 2018-19 Twilio SendGrid
  * @license   https://opensource.org/licenses/MIT The MIT License
  * @version   GIT: <git_id>
  * @link      http://packagist.org/packages/sendgrid/sendgrid
@@ -43,7 +43,7 @@ class SingleEmailToMulipleRecipientsTest extends BaseTestClass
         ]
       }
     ],
-    "subject": "Sending with SendGrid is Fun",
+    "subject": "Sending with Twilio SendGrid is Fun",
     "content": [
       {
         "type": "text/plain",
@@ -73,7 +73,7 @@ public function testWithObjects()
             new \SendGrid\Mail\To("test+test2@example.com", "Example User2"),
             new \SendGrid\Mail\To("test+test3@example.com", "Example User3")
         ];
-        $subject = new \SendGrid\Mail\Subject("Sending with SendGrid is Fun");
+        $subject = new \SendGrid\Mail\Subject("Sending with Twilio SendGrid is Fun");
         $plainTextContent = new \SendGrid\Mail\PlainTextContent(
             "and easy to do anywhere, even with PHP"
         );
@@ -105,7 +105,7 @@ public function testWithoutObjects()
             "test+test3@example.com" => "Example User3"
         ];
         $email->addTos($tos);
-        $email->setSubject("Sending with SendGrid is Fun");
+        $email->setSubject("Sending with Twilio SendGrid is Fun");
         $email->addContent("text/plain", "and easy to do anywhere, even with PHP");
         $email->addContent(
             "text/html", "<strong>and easy to do anywhere, even with PHP</strong>"