Microsoft 365 Outage Hits Teams, Exchange and SharePoint Across the Americas
Microsoft confirmed a widespread outage Thursday affecting Microsoft 365 services including Teams, Exchange Online, SharePoint, Copilot 365 and Defender XDR, primarily across North and South America. The company said servers had gone offline, causing elevated network load, and that it was rerouting traffic and restarting affected servers while pausing all deployments. By mid-afternoon Microsoft had not confirmed a root cause or resolution timeline.
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The outage underscores how dependent businesses have become on a single cloud provider for core communication tools, meaning a server-level failure can simultaneously disrupt email, meetings and file sharing for huge numbers of organizations. Microsoft's acknowledgment that the problem stemmed from infrastructure failure rather than demand suggests reliability questions for its cloud backbone, which could prompt scrutiny of its incident response and redundancy planning.
- Microsoft 365 outage disrupted Teams, Exchange Online, SharePoint, Copilot 365 and Defender XDR.
- Microsoft said the issue stemmed from servers going offline, not from traffic spikes, and began rerouting traffic and restarting servers.
- As of the report, Microsoft had not given a cause or timeline for full restoration.
Source: wired.com — Andrew Couts, 2026-11-12
Published there as: “Major Microsoft Outlook Outage Leaves People With Email Jobs Unable to Email”
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