M365 Changelog: (Updated) Microsoft Defender for Office 365: Quarantine End User Allow and Block list management
Summary
Microsoft Defender for Office 365 is updating the way end users allow and block emails in Exchange Online. The update will allow end users to block emails from unwanted senders and prevent those emails from showing up in their default quarantine view and in their quarantine notifications. The rollout will begin late April 2024 and expect to complete by mid-June 2024. No action is needed to prepare for this change.
MC711335 – Updated May 24, 2024: Microsoft has updated the rollout timeline below. Thank you for your patience.
In Microsoft Defender for Office 365, Microsoft is updating the way end users allow and block emails in Exchange Online.
This message is associated with Microsoft 365 Roadmap ID 380185.
When this will happen:
Worldwide: Microsoft will begin rolling out late April 2024 (previously late March) and expects to complete by mid-June 2024 (previously mid-May).
GCC, GCC High and DoD: Microsoft will begin rolling out mid-Mary 2024 (previously late April) and expects to complete by mid-June 2024 (previously late May).
How this will affect your organization:
With one click, end users will block emails from unwanted senders and prevent those emails from showing up in their default quarantine view and in their quarantine notifications. If no admin overrides exist, end users will also be able to allow emails from trusted senders and prevent future emails from those senders from going into quarantine. End users can now review admin any override reasons that lead to quarantined emails.
Figure 1: Allow sender action:
Figure 2: Review admin Override reason:
Figure 3: Undo Block sender:
Figure 4: Allow sender in Quarantine policy:
Figure 5: Block sender action eliminated from default Quarantine policies:
Figure 6: How to include or exclude messages from blocked sender in Quarantine notification:
Figure 7: Quarantined messages from blocked senders are excluded from Quarantine view by default:
What you need to do to prepare:
No action is needed to prepare for this change. You may want to notify your users about this change and update any relevant documentation as appropriate.
Previous Exchange Online Changelog Messages
- M365 Changelog: Reminder: Retirement of the classic Exchange admin center and availability of “View another mailbox”
- M365 Changelog: Microsoft Defender for Office 365: Tenant Allow/Block Lists will support entry removal 45 days after last used date
- M365 Changelog: (Updated) Microsoft Defender for Microsoft Office 365: enhanced clarity in submission results
- M365 Changelog: (Updated) Retirement of AdminAuditLog and MailboxAuditLog cmdlets
- M365 Changelog: Microsoft Outlook for iOS: Mail categories
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