PostmarkApp Email Integrator

Changelog

v2.4

  • Added filter as defined in the wp_mail function so as to minimize conflict with other plugins.

v2.3

  • Allow multiple Bcc & Cc in headers that are not comma separated.
  • Fixed casing issues in the headers caused when some plugin/code uses lower casing for headers.

v2.2

  • Added better $var validation using isset to prevent ‘Notice: Undefined’ when WP_debug is activated.

v2.1

  • Fixed the breaking of plaintext when force html option is selected

v2.0

  • Error handling done through WP_Error object
  • Made the “Test Email” error messages more descriptive by showing actual PostMarkApp messages
  • Added support for Bcc header
  • Added support for Cc header
  • Added support for Reply-To header
  • Removed “Powered by PostMark” append in the emails

v1.1

  • Added functionality to import the settings of official “Postmark Approved WordPress Plugin”

v1.0

  • Fixed the Connection Timeout bug
  • Fixed the Fatal Error due to incorrect usage of WP_Error object
  • Fixed the issue while parsing the headers sent as array to the wp_mail function

Plugin Website
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Version:
2.4
Last Updated
February 10, 2026
Active Installs
60
Requires
WordPress 3.5
Tested Up To
WordPress 6.9.1

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