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TLS-RPT

Asks sending servers to report TLS-delivery failures to you.

Email authentication

What is TLS-RPT?

TLS-RPT (SMTP TLS Reporting) is a small DNS record asking sending mail servers to email you (usually a dedicated address like tlsrpt@yourdomain.com) when they fail to deliver via TLS. Useful diagnostic signal that pairs with MTA-STS.

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