SMTP Strict Transport Security


rugk
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There is a new IETF draft for adding the well-known HSTS (HTTP Strict Transport Security) to SMTP too. Although the name is similar it still works in a different way.

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SMTP STS is a mechanism enabling mail service providers to declare their ability to receive TLS-secured connections, to declare particular methods for certificate validation, and to request sending SMTP servers to report upon and/or refuse to deliver messages that cannot be delivered securely.

https://tools.ietf.org/html/draft-margolis-smtp-sts-00

Edited by rugk
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