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Microsoft Announces Shutdown Timeline for Exchange Web Services

Microsoft Announces Shutdown Timeline for Exchange Web Services

First seen 6 Feb 2026, 21:46 UTC

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ThreatCluster AI
ThreatCluster March 12, 2026 at 13:27 UTC

Microsoft has announced the timeline for the shutdown of Exchange Web Services (EWS) in Microsoft 365 and Exchange Online. EWS will be disabled by default on October 1, 2026, with a complete shutdown scheduled for April 1, 2027. This change affects all users relying on EWS for accessing Exchange mailbox items.

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