1
Cloudflare Email
WP Registry grade A. No security issues foundGradeANo security issues foundWP Registry
Send all WordPress email through the Cloudflare Email Sending API and log every message. Configure via wp-config.php — no admin settings.
★ 015
2
Sendelva – Email Delivery for Microsoft 365. WordPress email through Microsoft Graph with app-only OAuth, no SMTP. On WordPress.org. Formerly Graph Mailer. GPL-2.0.
★ 07
3
Missivus for WordPress — send WordPress email through Microsoft Graph with application permissions and a shared mailbox. No SMTP, no user login. Free, GPLv3.
★ 07
4
Inklura Mail — route wp_mail through bext managed email, with a log. Multisite + self-updating.
★ 05
5
Routes WordPress emails through the Cloudflare Email Service REST API.
★ 02