Microsoft races to fix global outage hitting Outlook, Teams and Copilot
11/13/2026 — 11/13, 18:16·8 sources (all)·9 reports (all)·In the 2026-11-13 briefing
Key takeaways
- Microsoft is racing to restore Outlook, Teams and Copilot after a widespread global outage disrupted services across dozens of countries, wi…
Background & analysis
On November 12, 2026, a broad outage hit multiple Microsoft services in the U.S. Eastern Time window, leaving Microsoft 365, Outlook, Teams and other applications unavailable for several hours and affecting a large volume of users. Outage tracker Downdetector recorded a peak of 138058 Outlook problem reports shortly after 1 pm Eastern Time, close to 130,000, with users saying they could not send or receive emails or could not load their inboxes. New reports fell back from that peak afterward, and by the evening Outlook reports had dropped to roughly 34490.
The disruption also touched connection components used by AI services such as OpenAI and Anthropic, creating knock-on effects for enterprises that depend on Microsoft cloud infrastructure as well as for related AI services. Microsoft later posted an update on the official Microsoft 365 status account confirming that the outage was not caused by a surge in traffic. Instead, multiple servers went offline unexpectedly, pushing the remaining infrastructure into high load and causing the core processes on the affected servers to become overloaded. In other words, the failure originated on the infrastructure side rather than the demand side. Microsoft responded by pausing all deployments and shifting connection traffic.
By 6 pm Eastern Time, Microsoft said it was still working to restore the affected servers, had observed limited recovery, and that users were gradually reconnecting. As of 5:47 pm Eastern Time, Microsoft 365 problem reports had fallen to just under 13000, while Teams access failure reports stood at 763. Service restoration efforts were still underway.
AI-generated from 2 reports · updated 10 hours ago
Latest turnAccording to The Washington Post, multiple Microsoft 365 services including Outlook, Teams, and the AI assistant Copilot experienced a widespread global outage. Microsoft is currently investigating and working to resolve the issue affecting users worldwide.
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Reports on this story headlines open the original
According to The Washington Post, multiple Microsoft 365 services including Outlook, Teams, and the AI assistant Copilot experienced a widespread global outage. Microsoft is currently investigating and working to resolve the issue affecting users worldwide.
华盛顿邮报 · 科技AI score 59According to NPR, a widespread Microsoft outage has taken email and other core applications offline, disrupting the daily lives and work of thousands of users. WIRED journalist discussed the extensive impact of the disruption during the interview.
NPR · 科技AI score 52According to Forbes Innovation, a global outage is affecting Microsoft 365 services including Teams, Outlook, and Copilot. Users are experiencing widespread disruptions while the company addresses the issue.
Forbes InnovationAI score 56A major global Microsoft outage has caused widespread connectivity issues affecting M365 services, Teams, Outlook, and Microsoft Copilot. Downdetector reported tens of thousands of issues globally, while Microsoft stated the outage was not a cyber-security incident.
BBC News · 科技AI score 68According to Caixin, Microsoft is working to restore flagship services after a major outage affected global users of Outlook, Teams, and Copilot. The widespread disruption has generated a significant volume of user reports.
36氪AI score 65According to BBC News, Microsoft is struggling to resolve a global outage affecting connectivity across multiple services, including Teams, Outlook, and the Copilot AI software.
BBC News · 科技AI score 65According to cnBeta, Microsoft experienced a technical outage affecting productivity software for several hours, with Outlook, Teams, and Copilot AI services unavailable to users during the U.S. workday. The company is actively working to restore access to email and chat services.
cnBetaAI score 59A widespread outage hit Microsoft Outlook and several other cloud applications, with nearly 130,000 users reporting access issues on Downdetector. The disruption affected email communications and cascaded into services relying on Microsoft's infrastructure.
ETtechAI score 57Microsoft confirmed that its major service outage was caused by unexpected server disconnections that overloaded remaining infrastructure, rather than traffic surges. The disruption impacted Microsoft 365, Outlook, and connected components for OpenAI and Anthropic.
东方财富AI score 67
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