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Best authenticated mail plugins for WordPress

The most popular authenticated mail plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. MBC SMTP Flex leads with 10+ active installs. All 1 plugins tagged “authenticated mail” 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 authenticated mail plugins

  1. 1.
    MBC SMTP Flex

    The most installed authenticated mail plugin, with 10+ active installs. No reviews yet, last updated 10 years ago. Tested only up to WordPress 4.3.34.

All 1 plugins tagged “authenticated mail”