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Recorded 15 Oct 2026 at 13:21 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

Microsoft 365 roadmapMicrosoft 365 roadmap

Microsoft Defender for Office 365: Admins can block external users in Microsoft Teams from Defender Portal

Security admins with Defender for Office 365 Plan 1 and above can block external users from sending messages, calls, meetings invitation over Microsoft Teams via the Tenant Allow Block List in Microsoft Defender portal. Updated January 28, 2026: We are pausing rollout at this time as we address an ongoing issue. We apologize for any inconvenience.

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  1. 15 Oct 2026 · 13:21:54 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  2. 15 Oct 2026 · 12:20:54 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  3. 15 Oct 2026 · 11:19:54 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  4. 14 Oct 2026 · 11:54:40 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  5. 14 Oct 2026 · 11:22:42 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 11 Nov 23:12 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current

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