Superfast Mailgun for the Newsletter plugin


The Superfast Mailgun add-on for the Newsletter plugin allows you to take full advantage of the Mailgun “Batch Send” API. This makes it possible to send a newsletter to up to 1,000 addresses in a single API call.

For 10,000 subscribers, that’s 10 API calls instead of 10,000 calls. Quite a difference. It will take a lot less time to send out your newsletter.

  • Sends newsletters to up to 1,200 subscribers per hour.

  • Polls Mailgun for “bounces” and updates your mailing list accordingly.

  • Support by email or through the forum on

Filters ‘newsletter_message_html’, ‘newsletter_message_text’, ‘newsletter_message_subject’ and ‘newsletter_message’ are called only once per email, and receive a null $user parameter. This is because Mailgun takes care of replacing user-specific tags in the email.

Pro version

For mailing lists with more than 1,000 subscribers, get the Pro version!

  • Sends up to 120,000 emails / hour

  • Integrated Open/Click statistics (Requires the Newsletter Statistics add-on)

  • Selectable polling frequency

  • Transactional emails (e.g. Welcome email, subscription confirmation) can use a different route, e.g. using a different domain

  • Priority email support

You can easily upgrade from within your WordPress dashboard.


  • General Settings
  • Advanced Settings
  • Polling Settings


This add-on will only work if you have The Newsletter Plugin installed (version 6.3.3 or higher).

To use the Superfast Mailgun add-on, just install it like any other plugin.


There are no reviews for this plugin.

Contributors & Developers

“Superfast Mailgun for the Newsletter plugin” is open source software. The following people have contributed to this plugin.



Version 1.2.5

  • Verified compatibility with WP 6.3
  • Removed support for built-in SMTP. Requires Newsletter 7.8.0 or higher.

Version 1.2.4

  • Use latest Freemius SDK

Version 1.2.2

  • Added support for filters ‘newsletter_message_html’, ‘newsletter_message_text’, ‘newsletter_message_subject’ and ‘newsletter_message’

Version 1.2.1

  • Fix PHP 8.1 deprecation warnings
  • Use latest Freemius SDK

Version 1.2.0

  • Compatible with PHP 8.1

Version 1.1.6

  • New version of Freemius SDK

Version 1.1.5

  • Added support for speed query by Newsletter plugin 7.3.1

Version 1.1.4

  • Verified compatibility with PHP 7.4

Version 1.1.3

  • Minor improvements

Version 1.1.2

  • Fix bug when sending to more than 1,000 addresses at 12,000/hour or more (Pro only)

Version 1.1.1

  • Fix issue causing stats not to be up-to-date (Pro only)

Version 1.1.0

  • Use new PHPMailer if WP version >= 5.5 and old PHPMailer otherwise
  • Mime-encode the Display Name if necessary
  • Hide submenu items in the Newsletter menu on the left

Version 1.0.2

  • Suppress confusing warning on admin pages
  • Add link to support forum

Version 1.0.1

  • Fix layout issue on admin pages

Version 1.0.0

  • Initial published version