A misspelled email is a missed customer and a fake email is a real problem.
A simple tool to check whether an email address exists.
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If the format is incorrect it will be reported why. For example: unsupported characters, missing @-sign.
Any problems looking up the domain (the part after the @-sign) in DNS (Domain Name System) will be reported.
If possible an SMTP connection will be made to a mail server that is responsible for the e-mail, and any issues are reported.
Why Email Verify ?
Email Verify is a simple tool for verifying an email address. It's free and quite easy to use. Just enter the email address and hit check button. Then it tells you whether the email address is real or not.
It extracts the MX records from the email address and connect to mail server (over SMTP and also simulates sending a message) to make sure the mailbox really exist for that user/address. Some mail servers do not co-operate in the process, in such cases, the result of this email verification tool may not be as accurate as expected.