Microsoft 365 outage hits Outlook and Teams worldwide

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Microsoft 365 users worldwide experienced access issues with Outlook and Teams on Thursday, November 12, with login failures and error messages reported. The company confirmed connectivity errors in Exchange Online infrastructure. Microsoft expanded the list of potentially affected services to include SharePoint, Copilot, Planner, and Power BI. The company is restarting servers and investigating whether recent configuration changes contributed to the problem. OpenAI and Anthropic reported issues with their Microsoft service connectors, affecting AI tools like ChatGPT and Claude that rely on Outlook email access. Downdetector issued an alert as complaints surged on social media.


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