Free MX Record Lookup
Confirm a domain can receive email and inspect its mail server priority order. Free, instant.
Fair-use limits apply, no signup needed.
Frequently Asked Questions
What is an MX record?
An MX (Mail Exchange) record is a DNS entry that specifies which mail servers are responsible for receiving email on behalf of a domain, and in what priority order.
Why does a domain have no MX records?
A domain with no MX records cannot receive email at all — any email sent to an address on that domain will bounce. This usually means the domain is not configured for email, is a typo, or is inactive.
Does this tool tell me if a specific mailbox exists?
No. MX lookup only confirms the domain can receive email in general. To check a specific mailbox, use the Free Email Verifier or a full RocketVerifier API call, which performs live SMTP verification.
Can I look up MX records for my own sending domain?
Yes — this is a common way to confirm your DNS changes have propagated after setting up a new mail provider like Google Workspace or Microsoft 365.
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