E-mail address verification
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:
- Syntax check
If the format is incorrect it will be reported why. For example: unsupported characters, missing @-sign.
- DNS lookup
Any problems looking up the domain (the part after the @-sign) in DNS (Domain Name System) will be reported.
- SMTP verification
If possible an SMTP connection will be made to a mail server that is responsible for the e-mail, and any issues are reported.
Note that for some domains the SMTP servers don't allow verification, so no information can be found. In this case the e-mail address may or may not exist.
Who uses this site?
- Marketing professionals
- IT professionals
- Commercial and non-profit organisations
- Private individuals
Volume/batch checking and abuseNote that the online check on this website is intended for individual checks.
Large volume checks in batch are not allowed and will be blocked automatically.
For checking of a large volume of e-mail addresses please see the batch checking application (currently only for Windows).