[ Free tool · Check ]
MX Lookup
See a domain's mail servers and whether the setup is valid DNS.
[ About this tool ]
This MX lookup lists the mail servers for a domain in priority order and resolves their addresses.
How to read the results
- ›Lower preference numbers are tried first.
- ›MX must point to a hostname, never an IP or CNAME.
- ›A null MX (0 .) means the domain accepts no mail.
Frequently asked questions
What is an MX record?
A DNS record that tells other servers where to deliver email for your domain.
Learn more in our guide: Email Deliverability: How to Reach the Inbox, Not Spam
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