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Best mail tester plugins for WordPress

The most popular mail tester plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. WP Test Email leads with 20K+ active installs. All 1 plugins tagged “mail tester” are below, with figures from WordPress.org that update every day.

Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.

Research this niche or see all plugins.

Top 1 mail tester plugins

  1. 1.
    WP Test Email

    The most installed mail tester plugin, with 20K+ active installs. Rated 4.7 from 15 reviews, last updated 2 years ago. Tested only up to WordPress 6.6.11.

All 1 plugins tagged “mail tester”