Tools/mx lookup
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MX Lookup Tool

Lookup MX records and review mail server priority for a domain.

Secure lookup over HTTPS and live network resolution

Understanding Your MX Lookup Results

MX lookup results show which mail servers receive email for a domain and how mail delivery priority is configured.

FOUND

Mail Servers Found

Shows the mail servers configured to receive messages for the domain.

PRIORITY

Delivery Priority

Lower priority numbers are tried first. Review ordering when backup or multiple mail servers are used.

EMAIL RISK

Missing or Wrong MX

Missing, outdated, or incorrect MX records can stop domain email from being delivered properly.

About This Tool

The MX Lookup Tool checks the public mail exchange records for a domain. MX records tell email systems which mail servers should receive messages for that domain and in what priority order.

Use it when email delivery is failing, after switching email providers, or before launching a domain that needs reliable business email.

Why It Matters

1

Confirm mail routing

Check whether the domain points to the expected mail servers.

2

Review priority order

Understand which server is tried first when multiple MX records are present.

3

Troubleshoot delivery failures

Spot missing, outdated, or mismatched mail records quickly.

4

Validate email migrations

Compare old and new provider records before and after DNS changes.

How To Improve

1

Check the active MX records

Enter the domain and review each mail server and priority value.

2

Match provider instructions

Compare the result with Google Workspace, Microsoft 365, Zoho, or your mail host setup guide.

3

Remove stale records

Old MX records can route mail to the wrong provider. Keep only the records your email service requires.

4

Test real delivery

After DNS updates, send and receive test emails from external accounts.

Frequently Asked Questions

An MX record is a DNS record that directs email for a domain to the correct mail server.
Lower priority numbers are usually tried first. Backup servers use higher numbers.
Only if the domain needs to receive email. A website can load without MX records.
The change may still be propagating, or SPF, DKIM, DMARC, mailbox, or provider settings may also need attention.