Enforce encryption for inbound emails. Prevent man-in-the-middle attacks by telling sending servers that you only accept secure connections.
// DNS Configuration
Mandatory Encryption for Email
Traditional email encryption is opportunistic—attackers can downgrade it to plain text. MTA-STS stops this by forcing encrypted connections.
Tell external mail servers that you strictly require encryption. If they can't encrypt, they shouldn't send.
Stop man-in-the-middle attacks where hackers strip encryption from email traffic.
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