Checking whether a domain has visible inbound mail routing configured.
Email routing DNS
Run An MX Lookup
Check MX records for a domain and confirm which mail servers appear responsible for receiving email.
Lookup focus
Mail exchange records
Enter a domain like example.com to inspect its DNS records.
Why run an MX lookup?
MX records tell other mail systems where email for a domain should go. If those records are missing or incorrect, mail delivery can fail even when the rest of the domain appears healthy. That makes MX lookup a valuable step during email setup and troubleshooting.
MX lookups are useful for:
Comparing MX priorities during a provider migration or rollout.
Confirming mail records after switching to a hosted email platform.
What MX records control
MX records identify the mail servers that should receive email for a domain and define their priority order. When a provider asks you to add mail routing records, these are often the core entries that decide where delivery attempts are sent first.
Why email problems often start in DNS
A mail client can look misconfigured when the actual issue is simpler: the sending system cannot find the correct MX records in the first place. Checking the published MX set is one of the fastest ways to confirm whether the domain is even advertising a destination for inbound mail.
How to use this with TXT checks
MX alone is not the whole email story. After confirming the receiving servers, it is common to check TXT records for SPF, DKIM, or verification tokens as well. That is why this page pairs naturally with a broader DNS lookup or a TXT-focused check.
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