What is MTA-STS ? (2025)

The MTA-STS protocol specifies to an SMTP sending server that emails addressed to your domain must be sent over a TLS-encrypted connection. In case an encrypted channel cannot be negotiated, the email is not delivered at all, instead of being delivered as cleartext. Sign up for a free Hosted MTA-STS now at https://powerdmarc.com

Тэги:

#MTA-STS #Mail_Transfer_Agent-Strict_Transport_Security #email_authentication #dmarc

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