Postman Gmail API Extension

The Postman Gmail API Extension uses the HTTPS port (443) to deliver mail even on hosts that block the standard SMTP ports (25/465/587).

Author:Jason Hendriks (profile at
WordPress version required:3.9
WordPress version tested:4.1.7
Plugin version:1.0.4
Added to WordPress repository:23-02-2015
Last updated:14-06-2015
Warning! This plugin has not 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.
Rating, %:100
Rated by:6
Plugin URI:
Total downloads:13 043
Active installs:500+
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* Please read before downloading *

This plugin is deprecated as of May 3rd, 2015. The functionality previously provided has been merged into the Postman SMTP plugin, v1.6. That single package is all you need to send your Gmail from web hosts that block your access to remote SMTP servers. If you previously installed this plugin, you may remove it. See this post for more information.

Can't send Gmail because ports 465 and 587 are blocked on your host? No problem! The Postman Gmail API Extension works in combination with Postman SMTP to send your mail out on the HTTPS port, port 443. Even if you host your site on GoDaddy or Bluehost, your Gmail will be delivered!

The Postman Gmail API Extension includes the Google APIs Client Library for PHP. The Google API does not support password-based authentication and Postman will guide you in creating a (free) Google OAuth 2.0 Client ID.


  • Send Gmail from your WordPress site over HTTPS
  • Available translations: English, French, Italian

If you are willing to help translate Postman into your language, please let me know!