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Launched

Outlook: Improved handling of disallowed and failed email reactions

Why it matters: Breaking change — admin action may be required

Emails with reactions disallowed will now see the Reactions button grayed out correctly. Additionally, when any attempt to react fails, the local update will no longer remain onscreen and be properly undone.

Target May CY2026Cloud Worldwide, GCC, GCC High, DoDPlatform DesktopSource updated 2026-05-18

Affected: Outlook

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