Learn about TLS-RPT, a new protocol to help secure your inbound messages working alongside MTA-STS

Faisal Misle avatar
Written by Faisal Misle
Updated over a week ago

How do we know that sending MTA’s are failing MTA-STS?

Much like DMARC, the answer is emailed reports. These reports include detected MTA-STS policies, traffic statistics, unsuccessful connections, and failure reasons.

Enter SMTP TLS Reporting (or TLS-RPT for short). It enables reporting of TLS connectivity problems experienced by the sending MTA’s and is defined in RFC8460.

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