DANE / TLSA checker

Are your mail servers pinned with DANE, so senders can verify their certificates through DNSSEC?

Live lookupPlain English + technicalFree, no sign-upBeta
Good to know: Checks your TLSA records and that your mail servers’ DNS is signed with DNSSEC. It doesn’t compare TLSA to the certificate on port 25.
Try:

About the DANE / TLSA

Check DANE TLSA records for a domain’s mail servers and whether the MX records are signed with DNSSEC.

Every result comes in two styles: plain English for everyone, and the exact technical detail for engineers, with the raw JSON one click away.

Questions

Both protect incoming mail. DANE needs DNSSEC; MTA-STS needs an HTTPS policy file. Many big providers support both.