85684 – Microsoft Defender for Office 365: Exchange Online Protection- Customizable Authenticated Received Chain (ARC) configuration

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check before: 2022-06-01

Product:

Defender, Defender for Office 365, Exchange, Microsoft 365 Defender, Microsoft Defender for Office 365, SharePoint

Platform:

Online, US Instances, Web, World tenant

Status:

Rolling out

Change type:

Feature update, Admin impact

Links:

MC390410

Details:

Email senders use authentication mechanisms like SPF, DKIM, DMARC to authenticate emails, but some legitimate intermediate services may potentially make changes to the email, which might cause the email to fail authentication at subsequent hop. Authenticated Received Chain (ARC) is an authentication mechanism that helps preserve authentication results across intermediaries. With this change, admins will be able to add trusted intermediaries in the Microsoft 365 Defender portal to allow Microsoft to honor these ARC signatures, thereby allowing legitimate messages.

Change Category:
XXXXXXX ...

Scope:
XXXXXXX ...

Release Phase:
General Availability

Created:
2021-10-15

updated:
2022-06-16

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changes*

DatePropertyoldnew
2022-06-16RM StatusIn developmentRolling out
2022-06-08RM Cloud Instance TagsWorldwide (Standard Multi-Tenant)GCC High, Worldwide (Standard Multi-Tenant), GCC, DoD
2022-06-07RM ReleaseApril CY2022June CY2022

*starting April 2022

Last updated 2 weeks ago

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