This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

This plugin has been closed and is no longer available for download.

MailChimp STS


Plugin uses MailChimp Simple Transactional Service (which in turn uses Amazon Simple Email Service) to send outgoing emails from your WordPress installation.

Emails can be optionally tracked (for being opened and/or clicked) and are automatically tagged for statistics in MailChimp Transactional Reports.

This plugin is currently released as beta for early adopter evaluation and finalizing of initial feature set.


  • Settings screen.
  • Report screen.


  1. Upload mailchimp-sts to the /wp-content/plugins/ directory
  2. Activate the plugin through the Plugins menu in WordPress
  3. Configure plugin in Settings > MailChimp STS

See readme.html, supplied with plugin, for detailed instructions on signing up for MailChimp and Amazon.


Why do I need MailChimp API key?

A MailChimp API key is required for access to Simple Transactional Service. STS provides API through which emails are going to be send.

Why do I need Amazon secret keys?

Amazon Simple Email Service is used for actual email delivery and pricing, if you need resources above those available in free account.

Is all email routed through STS?

Email that uses custom headers and/or attachments is not currently supported by STS API and will be sent directly.

Where do I go for support?

Contributors & Developers

“MailChimp STS” is open source software. The following people have contributed to this plugin.


Translate “MailChimp STS” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Documentation updates.


  • Initial beta release.