Tool
MX Record Lookup
Look up the Mail Exchange (MX) DNS records for any domain — see mail servers, priority, TTL, and provider detection.
What are MX records?
Mail Exchange (MX) records are DNS entries that specify which mail servers handle email for a domain. Without valid MX records, a domain cannot receive email. Each record has a priority value — lower number means higher priority and is tried first.
Common use cases
Email deliverability
Confirm a domain can receive email before sending a campaign or integration.
Domain migration
Verify MX records are correctly pointed after switching email providers.
IT troubleshooting
Diagnose why email isn't arriving by checking mail server configuration.
Security audit
Identify the email provider and check for misconfigured mail routing.
Frequently asked questions
How long do MX record changes take?
DNS changes propagate within the record's TTL (usually 5 min–24 hours). The TTL is shown in the results.
Can a domain have multiple MX records?
Yes — multiple records provide redundancy. The server with the lowest priority number is tried first; others serve as fallbacks.
What if no MX records are found?
The domain either cannot receive email, or relies on an implicit A-record fallback (rare and unreliable). Check with the domain owner.
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