Email Address Checker
Check an email address for syntax problems and whether its domain can receive mail.
How to use this tool
- 1Type an email address or a domain.
- 2Review syntax, domain existence and MX records for receiving.
- 3Fix problems and check again as needed.
Frequently asked questions
Does it send a test email?
No. The tool only reads domain records — nothing is emailed.
Does a result guarantee delivery?
No. Passing syntax and MX checks is a good sign, but only sending proves delivery.
What are MX records?
They tell the internet which server receives mail for a domain; without them, delivery fails.