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MX Lookup

Check mail exchanger records and their priorities for a domain.

Run MX LookupFind mail exchanger records for a domain.
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Run MX Lookup to view detailed results

What is MX Lookup?

An MX lookup shows the mail exchanger records and priorities published for a domain. Use it to troubleshoot email routing and verify which servers are configured to receive mail.

When to use this tool

  • Check public network or website information quickly.
  • Diagnose connectivity and configuration issues.
  • Verify results while troubleshooting.
  • Use a clear, browser-based diagnostic view.

MX Lookup — Frequently Asked Questions

What does the MX Lookup do?

Check mail exchanger records and their priorities for a domain.

How do I use the MX Lookup?

Enter the requested domain in the form above, then select “Check MX Records”. Review the returned information in the results panel.

Is the MX Lookup free to use?

The public Spexo networking tools are available online without a paid subscription or account for basic use.

Why can results vary or be unavailable?

Results depend on the target host, public DNS or registration data, network path, remote service availability and current conditions. Some services limit or block automated requests.