Microsoft Outage Disrupts Outlook, Teams and Microsoft 365 Across the Americas

The update

A widespread Microsoft outage on Thursday disrupted Outlook, Teams, Microsoft 365 and other services, mainly in the Americas. Downdetector recorded more than 130,000 reports for Outlook by about 1:30 p.m. Eastern Time, more than 46,000 for Microsoft 365 and about 3,000 for Teams, while Euronews also reported disruption to Copilot. Users reported being unable to access mailboxes, send or receive messages, and delays in email delivery, after the outage began shortly before 1 p.m. Eastern Time.

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Why it matters

Outlook and Teams are core workplace tools, so an outage across multiple regions can interrupt business communication far beyond individual users. Microsoft said part of its infrastructure was experiencing higher than normal load across multiple regions, likely contributing to connectivity errors. CNBC reported the company linked the shutdown to an increase in unavailable servers and failed health checks involving a component that processes server health.

What to watch

Microsoft said it was restarting affected servers, redistributing traffic to rebalance load, and taking steps to prevent additional servers from being affected while service returns. CNBC also noted that Amazon Web Services and Google users reported problems on Downdetector, though neither source linked those reports to the Microsoft failure. Watch for Microsoft’s confirmation that services are fully restored, and any explanation of the health-check failure.

Sources

• euronews.com — confirms the service breakdown, Downdetector report counts and Microsoft’s elevated-load explanation
• cnbc.com — confirms the timing, affected services, server restarts and health-check details

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