Free tool
MX Record Lookup
Look up a domain's MX (mail exchange) records to confirm it can receive email and see which provider handles its mail.
How it works
- 1Enter a domain (e.g. example.com).
- 2We query its DNS MX records live.
- 3See the mail servers and their priority.
Questions
Frequently asked
What is an MX record?
A DNS record that tells other mail servers where to deliver email for a domain. No MX records usually means the domain can't receive mail.
Why does it matter for verification?
An address on a domain with no MX records will hard-bounce. Checking MX is one of the first steps in email verification.
Can I check a whole list at once?
This free tool checks one at a time. To verify a full list — email, phone and company together — upload a CSV to BounceBlock and preview your first 100 rows free.
Stop wasting hours on dead leads.
Upload your list and see how clean it really is — free, in under two minutes.
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