MX Lookup
FreeEnter a domain to retrieve its public MX records, including mail server hostnames and priority values.
Related tools
Other utilities you may need.
How to use MX Lookup
Enter a domain name. The tool returns MX hosts and priorities from public DNS.
Understanding the results
Lower MX priority values are preferred by senders. Multiple MX hosts provide redundancy.
Limitations
- Results come from public DNS and may differ by resolver or TTL.
- A domain with no MX may still receive mail via other records in some setups.
Privacy note
Only the domain you enter is queried in public DNS.
Frequently asked questions
What is an MX record?
An MX record lists the mail exchange hosts responsible for receiving email for a domain.
What does MX priority mean?
Lower numbers are preferred. Senders try lower-priority hosts first.
Why might a domain have no MX records?
Some domains omit MX and rely on other DNS behavior, or they simply do not accept mail.
Do I need an account?
No account is required for free tools on this site.