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Assessment Title
Rule Text
Exchange Internet-facing Receive connectors must offer Transport Layer Security (TLS) before using basic authentication.
Description
Discussion Text
Sending unencrypted email over the Internet increases the risk that messages can be intercepted or altered. TLS is designed to protect confidentiality and data integrity by encrypting email messages between servers and thereby reducing the risk of eavesdropping, interception, and alteration. This setting forces Exchange to offer TLS before using basic authentication.
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