Message CenterMajor changeNew featureAdmin impact

MC1423106 — Introducing cross-tenant message recall in Exchange Online

MC1423106Exchange OnlineplanForChangeUpdated: 10 July 2026

Exchange Online will support cross-tenant message recall, allowing trusted external Microsoft 365 tenants to recall messages sent to your users. This feature, disabled by default, can be enabled and managed by admins via PowerShell with an allow list of tenant IDs. Rollout starts mid-August 2026.

Applies to: Exchange Online
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).