PostmarkApp Email Integrator
Enables your WordPress site to send emails via PostMarkApp API.
5(4 reviews)
·50 active installs·Updated 1 week agoAs of April 2026, PostmarkApp Email Integrator is a WordPress smtp plugin with 50 active installations and a 5/5 rating from 4 reviews. It has been downloaded 2.7K+ times in total. Requires WordPress 5.0+ and PHP false+. Available on WordPress.org since 2014. Actively maintained — updated within the last month. Top alternative: WP Mail SMTP by WPForms – The Most….
5/54 reviews
50active installs
2.7K+total downloads
12 yearssince 2014
Overview
This plugin enables WordPress blogs of any size to deliver and track WordPress notification emails reliably, with minimal setup time and zero maintenance. No more SMTP errors or delivery problems with Postmark!
If you don’t already have a free Postmark account, you can get one in minutes. Every account comes with thousands of free email sends.
PLEASE NOTE: This is not official PostMarkApp Plugin. This plugin is a copy of the Official Postmarkapp plugin which had several critical bugs. The Official Plugin developers have not addressed these bugs for some time now, so I created a new plugin to solve those issues.
Issues fixed(from the official version):
- Fixed the Connection Timeout bug
- Fixed the Fatal Error due to incorrect usage of WP_Error object
- Fixed the issue while parsing the…
Ratings & Reviews
54 reviews
5 ★
4
4 ★
0
3 ★
0
2 ★
0
1 ★
0
Compatibility
| WordPress | 5.0+ requiredTested up to 6.9.4 |
| PHP | false+ required |
Top Alternatives to PostmarkApp Email Integrator
Frequently Asked Questions
Changelog
v2.5.0
- Security: Fixed Stored Cross-Site Scripting (XSS) vulnerability in plugin settings (CVE-2026-1043)
- Security: Added output escaping with esc_attr() on all form field values
- Security: Added input sanitization with sanitize_text_field() and sanitize_email()
- Security: Added nonce verification for settings form and AJAX requests
- Security: Added capability checks for form processing and AJAX handlers
…and 10 more changes
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.