MX Lookup

Check mail exchange (MX) records for any domain.

✓ Free✓ Browser Based✓ No Data Stored

What is MX Lookup?

MX Lookup retrieves Mail Exchange (MX) records for a domain. These records determine which mail servers are responsible for receiving email on behalf of the domain.

Email administrators use MX lookups to verify email routing, troubleshoot delivery issues and confirm that email services such as Google Workspace, Microsoft 365 and other providers are configured correctly.

If MX records are missing or incorrectly configured, email may be delayed, rejected or delivered to the wrong destination.

Frequently Asked Questions

What is an MX Record?

MX (Mail Exchange) records specify which mail servers receive email for a domain.

Why are MX records important?

Without valid MX records, email delivery to a domain may fail completely.

How do I verify email configuration?

Checking MX records helps confirm that email is routed to the correct mail servers.

Can MX records help troubleshoot email issues?

Yes. Incorrect or missing MX records are a common cause of email delivery failures.