check before: 2019-10-31
Product:
Advanced Threat Protection - Office 365, Defender ATP, Exchange, Microsoft Information Protection, Office 365 general
Platform:
Online, World tenant
Status:
Launched
Change type:
Links:
Details:
All hosted mailboxes in Office 365 will now gain the benefit of ARC with improved deliverability of messages and enhanced anti-spoofing detection. ARC preserves the email authentication results from all participating intermediaries, or hops, when an email is routed from the originating server to the recipient mailbox. Before ARC, modifications performed by intermediaries in email routing, like forwarding rules or automatic signatures, could cause email authentication results to fail by the time the email reached the recipient mailbox. With ARC, the cryptographic preservation of the authentication results allows Office 365 to verify the authenticity of an email's sender. Initially ARC will only be utilized to verify authentication results within Office 365, but plan to add support for third party signers in the future.
Change Category:
XXXXXXX ...
Scope:
XXXXXXX ...
Release Phase:
General Availability
Created:
2019-10-25
updated:
2020-12-04
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Last updated 2 years ago
