Title: Mailster SendGrid Integration
Author: EverPress
Published: <strong>January 13, 2017</strong>
Last modified: May 27, 2024

---

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![](https://ps.w.org/mailster-sendgrid/assets/banner-772x250.png?rev=3093267)

This plugin **hasn’t been tested with the latest 3 major releases of WordPress**.
It may no longer be maintained or supported and may have compatibility issues when
used with more recent versions of WordPress.

![](https://ps.w.org/mailster-sendgrid/assets/icon-256x256.png?rev=3093267)

# Mailster SendGrid Integration

 By [EverPress](https://profiles.wordpress.org/everpress/)

[Download](https://downloads.wordpress.org/plugin/mailster-sendgrid.2.1.1.zip)

 * [Details](https://wordpress.org/plugins/mailster-sendgrid/#description)
 * [Reviews](https://wordpress.org/plugins/mailster-sendgrid/#reviews)
 *  [Installation](https://wordpress.org/plugins/mailster-sendgrid/#installation)
 * [Development](https://wordpress.org/plugins/mailster-sendgrid/#developers)

 [Support](https://wordpress.org/support/plugin/mailster-sendgrid/)

## Description

Uses SendGrid to deliver emails for the [Mailster Newsletter Plugin for WordPress](https://mailster.co/?utm_campaign=wporg&utm_source=wordpress.org&utm_medium=readme&utm_term=SendGrid).

> This Plugin requires [Mailster Newsletter Plugin for WordPress](https://mailster.co/?utm_campaign=wporg&utm_source=wordpress.org&utm_medium=readme&utm_term=SendGrid)

### Additional Info

This Plugin requires [Mailster Newsletter Plugin for WordPress](https://mailster.co/?utm_campaign=wporg&utm_source=wordpress.org&utm_medium=readme&utm_term=SendGrid)

## Installation

 1. Upload the entire `mailster-sendgrid` folder to the `/wp-content/plugins/` directory
 2. Activate the plugin through the ‘Plugins’ menu in WordPress
 3. Go to Settings => Newsletter => Delivery and select the `SendGrid` tab
 4. Enter your credentials
 5. Send a testmail

## Reviews

![](https://secure.gravatar.com/avatar/1a4eb5919027e9a22d039c8397d364b413eedc16f2577d8a362cb475e8eca56d?
s=60&d=retro&r=g)

### 󠀁[Works great!](https://wordpress.org/support/topic/works-great-6843/)󠁿

 [josemanuel8](https://profiles.wordpress.org/josemanuel8/) June 10, 2020

I’ve switched do a different provider (Mailgun) meanwhile but this one works as 
promised. Thanks!

 [ Read all 1 review ](https://wordpress.org/support/plugin/mailster-sendgrid/reviews/)

## Contributors & Developers

“Mailster SendGrid Integration” is open source software. The following people have
contributed to this plugin.

Contributors

 *   [ EverPress ](https://profiles.wordpress.org/everpress/)
 *   [ Mailster Newsletter Plugin ](https://profiles.wordpress.org/mailster/)
 *   [ Xaver ](https://profiles.wordpress.org/xaverb/)

[Translate “Mailster SendGrid Integration” into your language.](https://translate.wordpress.org/projects/wp-plugins/mailster-sendgrid)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/mailster-sendgrid/),
check out the [SVN repository](https://plugins.svn.wordpress.org/mailster-sendgrid/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/mailster-sendgrid/)
by [RSS](https://plugins.trac.wordpress.org/log/mailster-sendgrid/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

### 2.1.1

fixed: warning on PHP >8.1

### 2.1

 * fixed: issue with invalid data type with WP 5.5

### 2.0.2

 * fixed: issue with Mailster 2.3.16+ and reply_to headers

### 2.0.1

 * fixed: undefined reply_to email address

### 2.0

 * switch to SendGrid API v3 requires now an API Key
 * embedded images works now with the WEB API
 * several improvements

### 1.0.1

 * fixed: issue with slashes in content when using the WEB API

### 1.0

 * initial release

## Meta

 *  Version **2.1.1**
 *  Last updated **2 years ago**
 *  Active installations **1,000+**
 *  WordPress version ** 6.0 or higher **
 *  Tested up to **6.5.8**
 * Tags
 * [delivery](https://wordpress.org/plugins/tags/delivery/)[email](https://wordpress.org/plugins/tags/email/)
   [mailster](https://wordpress.org/plugins/tags/mailster/)[mailsteresp](https://wordpress.org/plugins/tags/mailsteresp/)
   [newsletter](https://wordpress.org/plugins/tags/newsletter/)
 *  [Advanced View](https://wordpress.org/plugins/mailster-sendgrid/advanced/)

## Ratings

 5 out of 5 stars.

 *  [  1 5-star review     ](https://wordpress.org/support/plugin/mailster-sendgrid/reviews/?filter=5)
 *  [  0 4-star reviews     ](https://wordpress.org/support/plugin/mailster-sendgrid/reviews/?filter=4)
 *  [  0 3-star reviews     ](https://wordpress.org/support/plugin/mailster-sendgrid/reviews/?filter=3)
 *  [  0 2-star reviews     ](https://wordpress.org/support/plugin/mailster-sendgrid/reviews/?filter=2)
 *  [  0 1-star reviews     ](https://wordpress.org/support/plugin/mailster-sendgrid/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/mailster-sendgrid/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/mailster-sendgrid/reviews/)

## Contributors

 *   [ EverPress ](https://profiles.wordpress.org/everpress/)
 *   [ Mailster Newsletter Plugin ](https://profiles.wordpress.org/mailster/)
 *   [ Xaver ](https://profiles.wordpress.org/xaverb/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/mailster-sendgrid/)