ZeroBounce Email Verification & Validation v1.1.6
ZeroBounce validates emails on your WordPress site in real-time, blocking invalid and risky emails to improve deliverability and reduce bounce rates.
Tags / email-tester
email tester
5 WordPress plugins tagged “email tester”. Every result links to a crawlable PlugIndex profile.
Automatic Email Testing for WP v1.4.9
[UPDATED!] Automatic Email Testing for WP plugin allows you to set up a system inside wordpress to test your email server every day.
Email Checker v1.1
Prevent spam signups by bots and lost customers in comment, registration, and contact forms using Email Checker's Email Verification Plugin.
turboSMTP Email Validator v1.9.3
Email validation tool in WordPress forms registrations using turboSMTP API
Email Sender Control v1.1.0
Set custom WP sender name/email, send test emails, and search, sort, or view detailed logs to track, debug, and ensure reliable email delivery.