FREE TOOL

MX record lookup

The mail servers behind any domain, with priorities, live from DNS.

Free, no signup.

THE API UNDERNEATH

GET /mx/stripe.com

This page is that call, running from your browser. The domain endpoint folds the same answer into a fuller picture: registration, DNS, and the mail host behind the MX. Same endpoint on every plan, one pooled request per lookup.

Mx APIDomain API

QUESTIONS

What is an MX record?
The DNS entry that says which servers accept mail for a domain. Lowest priority number wins, the rest are backups.
The list is empty. What does that mean?
The domain has no MX records, so standard mail to it bounces. Some domains do that on purpose.
How fresh is the answer?
Live DNS with a short cache. A record you changed minutes ago shows up on the next check.
Can I do this from code?
Yes. GET /mx/{domain} returns the list, and GET /domain folds it into registration and DNS answers, including the mail host behind the MX on deep.