Microsoft 365 outage disrupts Outlook, Teams, and Copilot for second day
Microsoft 365 is experiencing a widespread outage affecting Outlook, Teams, Microsoft Copilot, and 16 other services, disrupting email, workplace tools, and cloud applications for users. The disruption began November 12 and persists into November 13, with Microsoft still working to restore full functionality. Microsoft has applied mitigation actions but reports a surge in outbound call volume from routing services to backend servers, which it is investigating alongside traffic imbalances. Impacted services include Exchange Online, Microsoft 365 admin center, Microsoft Defender, SharePoint Online, and Power BI, with users facing email delays, Copilot Chat loading failures, and Teams calendar issues. Microsoft is scaling up virtual machines and monitoring the situation, noting that initial fixes have not yet delivered recovery. The company advises that core Teams functions like calls and standard channels remain unaffected, while some features dependent on Exchange Online, such as private channel creation and live events, are failing.