Free email address verifier

Check if any email address is valid, invalid, or risky — instantly. No signup required.

1 free check per minute · No account needed

What we check

Syntax validation

Checks that the email address is correctly formatted before anything else.

🌐

DNS / MX lookup

Verifies the domain exists and has mail exchange records configured.

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SMTP probe

Connects to the mail server and checks whether the mailbox exists.

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Disposable detection

Identifies temporary email addresses from services like Mailinator.

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Catch-all detection

Flags domains that accept all emails regardless of whether the address exists.

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Role-based detection

Identifies addresses like info@, support@, admin@ that are shared inboxes.

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