Question 1

What does a TLS reporting checker validate?

Accepted Answer

A TLS reporting checker validates the RFC 8460 TLS-RPT DNS record so you can confirm the version tag and report destinations used for SMTP TLS failure reporting.

Question 2

Why use TLS-RPT if it does not enforce TLS by itself?

Accepted Answer

TLS-RPT adds visibility. It helps teams see when SMTP TLS delivery problems are happening so they can correct certificate, policy, or transport issues before they become recurring outages.

Question 3

When should teams run a TLS reporting lookup?

Accepted Answer

Run it after DNS changes, alongside MTA-STS rollout, and whenever report visibility is part of the transport-security operating model.

Question 4

What if the record is valid but no reports arrive?

Accepted Answer

That usually means the rua destination is not being monitored correctly, the mailbox route is broken, or transport issues are not occurring frequently enough to produce reports yet.

Free TLS reporting checker and TLS-RPT lookup

Check the live TLS-RPT record for a domain