M365 Changelog: (Updated) Microsoft Defender for Office 365: New Quarantine release details
Summary
Microsoft Defender for Office 365 is rolling out new details on who or what is responsible for releasing a message from quarantine. The Release by field will be propagated with the email address of the user or admin responsible for the release. This will be available in the email summary flyout panel accessible from the Quarantine page. The release will be captured by the system. Admins should update their training documentation. The rollout will begin in late March 2024 and complete by mid-June 2024.
MC744113 – Updated June 6, 2024: Microsoft has updated the rollout timeline below. Thank you for your patience.
In Microsoft Defender for Office 365, Microsoft is rolling out new details on who or what is responsible for releasing a message from quarantine.
These details will now be included in the email summary flyout panel accessible from the Quarantine page.
When this will happen:
General Availability (Worldwide, GCC, GCC High): Microsoft will begin rolling out late March 2024 and expects to complete by late June 2024 (previously late May).
DoD: Microsoft will begin rolling out mid-April 2024 and expects to complete by early July 2024 (previously mid-June).
How this will affect your organization:
After a message is released from quarantine, the Release by field will be propagated with the email address of the user or admin responsible for the release.
The Release by field will also capture releases carried out by the system:
Please note that previously this information was available only in audit logs.
What you need to do to prepare:
The purpose of this communication is for awareness. Admins should also update their training documentation as they see fit.
Learn more: Manage quarantined messages and files as an admin | Microsoft Learn
Previous Exchange Online Changelog Messages
- M365 Changelog: (Updated) Microsoft Defender for Office 365: Tenant Allow/Block List will support blocking top-level domains and subdomains
- M365 Changelog: (Updated) Exchange Online to introduce External Recipient Rate Limit
- M365 Changelog: (Updated) Microsoft Defender for Office 365: Block Sender in Quarantine notification will require signing in to security portal
- M365 Changelog: (Updated) Microsoft Defender for Office 365: Quarantine End User Allow and Block list management
- M365 Changelog: Reminder: Retirement of the classic Exchange admin center and availability of “View another mailbox”
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