MX Record Lookup
Look up a domain's MX records to see which mail servers handle its email.
Enter a domain below to instantly look up its MX (Mail Exchange) records - the DNS records that tell the internet which mail servers are responsible for receiving email for that domain, and in what priority order.
Each MX record includes a priority number (also called "preference") and a mail server hostname. Lower priority numbers are tried first - a record with priority 10 is preferred over one with priority 20. If the lowest-priority server doesn't respond, mail servers automatically fall back to the next one, which is why many domains have 2 or more MX records for redundancy. A domain with no MX record at all cannot receive email - some services fall back to the A record in that case, but this isn't guaranteed and is considered misconfigured. JustChecker tracks your DNS records continuously and alerts you the moment something changes.