Prevent spam signups by bots and lost customers in comment, registration, and contact forms using Email Checker's Email Verification Plugin.
As of April 2026, Email Checker is a WordPress email tester plugin with 10 active installations and a 0/5 rating0. It has been downloaded 1.8K+ times in total. Requires WordPress 3.1.0+ and PHP false+. Available on WordPress.org since 2017. Last updated 9 years ago — may have compatibility concerns. Top alternative: ZeroBounce Email Verification &….
Email Checker’s Advanced email verification service completes a deep cleaning by performing an SMTP simulation test to check if the mailbox actually exists on the destination mail server for the best email validation accuracy.
Lets face it, people misspell their email address and are completely unaware of it, resulting in a delivery failure due to a bounce or maybe even a spam complaint. Furthermore, you also just lost a potential customer for your business! What is very interesting is most of these invalid email addresses are a result of a simple misspelled domain such as “hotmail.con”, “gnail.com”, or “yahoo.cmo”.
For example “[email protected]” perfectly passes the is_email() function, but does not really exist. Such addresses cannot e…
| WordPress | 3.1.0+ requiredTested up to 4.7.33 |
| PHP | false+ required |
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