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Best sendgrid SMTP plugins for WordPress

The most popular sendgrid SMTP plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. GoSMTP leads with 500K+ active installs, ahead of SMTP for SendGrid (1K+) and WP SendGrid SMTP (900+). All 5 plugins tagged “sendgrid smtp” 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 5 sendgrid SMTP plugins

  1. 1.
    GoSMTP

    The most installed sendgrid SMTP plugin, with 500K+ active installs. Rated 4.3 from 10 reviews, updated 2 weeks ago.

  2. 2.
    SMTP for SendGrid

    1K+ active installs. Only 2 reviews so far, updated 5 months ago.

  3. 3.
    WP SendGrid SMTP

    900+ active installs. Only 3 reviews so far, last updated 8 years ago. Tested only up to WordPress 4.9.35.

  4. 4.
    King SMTP

    20+ active installs. No reviews yet, updated 3 months ago. Tested only up to WordPress 6.9.11.

  5. 5.
    Super Duper SMTP

    10+ active installs. No reviews yet, last updated 5 years ago. Tested only up to WordPress 5.4.25.

All 5 plugins tagged “sendgrid smtp”