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Free online tool

MX Lookup

e.g. example.com

Some information is sent to our server to provide this result. The domain you enter is sent to our server, which queries a public DNS resolver on your behalf. It is not retained beyond the immediate request.

What this tool shows

Enter a domain name and see its MX (Mail Exchange) records — the servers configured to receive email for that domain — sorted by priority, lowest number first, matching the order mail servers actually try them in.

A real, verified example

Looking up a domain with two mail servers configured returns both, correctly sorted by priority (10 before 20, not the order they happened to be listed in the raw DNS response) — confirmed by running this exact tool's own lookup and sorting logic against a real, representative DNS response.

Priority order matters

Lower priority numbers are tried first. A domain with multiple MX records is typically using the lower-priority ones as its primary mail servers and higher-priority ones as backups — this tool preserves and displays that real ordering rather than an arbitrary one.

MX records are not proof an email address exists

A domain having MX records configured means it's set up to receive mail in general — it says nothing about whether any specific address at that domain is valid, in use, or able to actually receive a given message. Don't treat "this domain has MX records" as equivalent to "this specific email address works."

No MX records is a real, meaningful result

A domain can be perfectly valid and still have no MX records — it simply isn't configured to receive email. This tool shows that plainly, as a genuine result, not an error.

Privacy

The domain you enter is sent to our server, which queries DNS on your behalf. Nothing you look up is stored or logged beyond the immediate request.

Examples

  • Input: A domain with two mail servers configured

    Output: 2 records, correctly sorted by priority: 10 mail1.example.com, 20 mail2.example.com

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