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E-mail address verification

Bulk check   NEW

MailTester.com now offers a complete business solution for verifying large lists of e-mail addresses.
99% accurate bulk email verification.
Verify your large email lists with new MailTester.com bulk email verifier.
** Get your free 100 credits **


For software developers: API now also available.

Single check

E-mail address

Welcome to MailTester.com

What is it?

Here you can enter an e-mail address to verify if it exists of if there are problems with it.
A series of checks will be performed on the e-mail address but no actual e-mail is sent.

How does it work?

Just enter the e-mail address and wait for the test results to appear.
There you will see the results of the different checks that are performed: Please see the frequently asked questions for more information.

Who uses this site?

Volume/batch checking

Please note online check on this webpage is for individual email checks only.
For bulk email checks in batch, please register to Mailtester premium and get free 100 credits.

API for developers   NEW

Mailtester premium offers two easy-to-integrate and customizable APIs: Bulk email check API and Real-time email check API.
Available in four libraries: PHP, Python, Ruby, C#.
For more details, please visit the API section.

New platform for Verification Large Email Lists!

Use this coupon code "Get20" to enjoy 20% OFF on all email verification purchases.

Check it Now!
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