M365 Changelog: (Updated) Custom organization branding for quarantine notification (custom sender address and Custom subject)

MC382821 — Updated October 13, 2022: Microsoft has updated the rollout timeline below. Thank you for your patience.

Microsoft will be adding capabilities to making it possible for Security Operations (SecOps) to customize end user quarantine notifications with their respective organization sender address and custom subject.

This message is associated with Microsoft 365 Roadmap ID 93301.

When this will happen:

Standard: will begin rolling out in late August (previously late July) and is expected to be complete by early November (previously early October).

Government: will begin rolling out in early November (previously early October) and is expected to be complete by late November (previously late October).

How this will affect your organization:

This change will enable admins to customize the sender address of the quarantine notification as well as the subject of the notification.

Customize sender address
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What you need to do to prepare:

You might want to notify your users about this change and update your training and documentation as appropriate.

Additional information

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