MX lookup
MX Lookup
Find the mail servers published for a domain and view their numeric priorities in preference order.
Free DNS lookup
Look up a domain
Enter a domain, website URL, or email address. We’ll find and sort its explicit MX records.
What we check
The lookup requests the explicit MX records published for the normalized domain.
How priority works
Lower numbers have higher preference, but sending systems can try other listed servers when needed.
What it does not prove
MX records do not guarantee delivery or show whether a mail server or domain is secure.