Microsoft Outlook outage disrupts Teams, SharePoint, OneDrive and Copilot
Microsoft confirmed an outage affecting its Outlook email service, initially reported in the U.S. and Americas before spreading globally. The company said the disruption also hit Teams, SharePoint, Copilot, Defender XDR, OneDrive, and Office for the web, blaming a large number of servers becoming unexpectedly unavailable.
GoKawiil's interpretation of the reporting above, not reported fact.
The breadth of affected services suggests the problem lies in shared Microsoft infrastructure rather than a single product, which could mean longer repair times for widespread business disruption. This follows a days-long Microsoft 365 outage in September tied to an authentication issue, raising questions about the reliability of Microsoft's cloud backbone for enterprise customers.
- Outlook outage spread from the Americas to a global disruption affecting multiple Microsoft services.
- Microsoft cited unexpected server unavailability without giving a root cause.
- This is Microsoft's second major cloud service outage since September, following a prior Microsoft 365 authentication failure.
Source: techcrunch.com — Zack Whittaker, 2026-11-12
Published there as: “Microsoft’s Outlook email hit by new outage”
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