MX Lookup Guide
Understand MX records, mail server priorities, and how MX lookup results fit into an email DNS audit.
What MX records show
MX records identify which mail servers receive email for a domain. A healthy setup usually has one or more mail exchangers with clear priorities.
- Missing MX records can mean inbound email is not configured.
- Unexpected providers may reveal old migrations or misrouted mail.
- Priority values determine which server receivers try first.