TLS Reporting is a DNS record that tells other mail servers where to send reports about TLS connection failures when delivering to your domain. Usually deployed alongside MTA-STS.
Gives visibility into delivery encryption problems that would otherwise be invisible — TLS failures don't bounce, they just degrade silently.
Configured but reports never monitored, deployed without MTA-STS (partial setup, limited value alone).
Run a free, instant audit of TLS-RPT and every other authentication record on any domain.
Run a Free TLS-RPT CheckMinor on its own, but combined with MTA-STS adoption it rounds out the "how technically mature is this competitor's email infra" picture CompetitorInbox gives at a glance.