Free MX Record Lookup Online — Check Microsoft 365 and Email DNS
MX Record Lookup
Free MX record lookup
See mail exchanger priorities for any domain. Useful before Microsoft 365 cutovers and everyday email delivery checks.
Free MX Record Lookup for Email and Microsoft 365 Checks
Free MX record lookup online. Check mail exchanger priorities for any domain. Useful for Microsoft 365 setup, email delivery checks, and IT administration labs.
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How to verify MX records before you cut over email
Publish the new MX values at your DNS host, wait for TTL, then confirm with this MX record lookup. Keep the old exchanger only if your provider asks for a phased cutover. I always capture a before-and-after screenshot for client handoff.
Why MX checks save migration weekends
Most “email is broken” tickets after a Microsoft 365 move come from a leftover MX record or a typo in the protection hostname. This simple MX record lookup tool catches that before users notice.