What this tool does
MX (mail exchange) records tell the world which servers accept email for a domain, and in what order to try them. This lookup returns every MX record with its priority (lower is tried first) and TTL, so you can confirm your mail is routed where you expect, or see who handles a domain's email.
Frequently asked questions
What does the MX priority mean?
When a domain has multiple mail servers, the priority number sets the order senders try them. The lowest number is the primary; higher numbers are backups used if the primary is unreachable.
No MX records were found, what does that mean?
A domain with no MX records doesn't receive email at that name. Some setups deliberately have none, or use the A record as a fallback. If you expect mail there, this usually signals a misconfiguration.
How do MX records relate to spam protection?
MX shows where mail is delivered, but SPF, DKIM, and DMARC control who's allowed to send. Use the DNS Reconnaissance or email tools to check those too.