Find the mail servers for any domain. See MX record priorities, identify the email provider, and check authentication status.
MX (Mail Exchange) records are DNS entries that specify which mail servers are responsible for receiving email for your domain.
Lower priority numbers mean higher preference. If the primary server (priority 10) is down, mail is delivered to the next server (priority 20).
Verify your mail server is configured correctly, identify which provider a domain uses, troubleshoot email delivery issues, or check a domain before sending.