MC794813 — Microsoft Defender for Office 365: Tenant Allow/Block Lists will support entry removal 45 days after last used date

Microsoft Defender for Office 365 will introduce a feature to automatically remove allow list entries 45 days after their last use, starting late June 2024. This applies to customers with Microsoft Exchange Online Protection and Defender for Office 365 Plan 1 or 2. Users are advised to update their allow entries to utilize this new feature.