Microsoft Defender for Office 365: New filter option for messages blocked due to file type block

Originally posted by Microsoft Feb 16, 2023 Uncategorized 0 Comments

We are introducing a new filter for the ‘Quarantine Reason’ in the Quarantine page (Email). As part of this release, the SecOps can now apply this filter to display only the emails which are blocked when file extension/type of one or more of the attachments matches those configured in the common attachment filter in the Anti-malware policy. Currently these emails are shown under the ‘Malware’ as the Quarantine Reason.

Product	Microsoft Defender for Office 365
Release phase	General Availability
Release date	April CY2023
Platform	Web
Cloud Instance	GCC, Worldwide (Standard Multi-Tenant), GCC High, DoD
Created	2023-02-16
Roadmap ID	117520
Roadmap Link	https://www.microsoft.com/microsoft-365/roadmap?featureid=117520