99% accurate email checker and email verification
Peep into MailTester.com toolbox

Bulk email verification
Verifying your lists is now as easy as one-two-three. Just upload your list and let MailTester.com bulk email verifier algorithm eliminate all the bad emails from your list. Our powerful servers ensure you get a clean list in the blink of an eye.

Single email verification
Want to verify an email before hitting the send button? Just type it in MailTester.com's Single email verification box and get your result instantly.

API
MailTester.com’s easy-to-integrate API allows you to automate the email collection process and prevent bad emails from getting into your list at the same time. MailTester.com provides Python, Ruby, C# and PHP API libraries.