MX record
Names the mail servers that accept email for a domain, with a priority number — lowest is tried first.
What one looks like
example.com. 3600 IN MX 10 mail.example.com.
Things worth knowing
- No MX record means the domain cannot receive email.
- Equal priorities distribute load; different priorities create a fallback order.
- An MX must point at a hostname, never at an IP address.
Look up a real MX record
Query any domain live and see every record type with its TTL.