MX Record Checker

How to use this MX checker

  1. Enter a domain name.
  2. See its mail servers listed in priority order.
  3. Lower priority numbers are tried first by sending mail servers.

Why would I check MX records?

MX records determine which mail servers accept email for a domain. Checking them helps confirm email is routed correctly after a provider migration, or diagnose why mail from a domain isn't being delivered.

What does it mean if a domain has no MX records?

It means the domain can't receive email at all — some sending servers will fall back to the domain's A record as a last resort, but a domain intended to receive mail should always have explicit MX records.

What's the point of having multiple MX records?

Redundancy — if the primary (lowest priority number) mail server is down, sending servers automatically try the next one in order, keeping mail delivery working.