Microsoft says servers unexpectedly went offline, disrupting Outlook e mail, Groups, Copilot and different companies.
Revealed On 12 Nov 2026
1000’s of Microsoft customers reported hassle accessing their e mail and connecting to work apps after a widespread outage hit Outlook and different companies on Thursday.
Reviews of issues with Outlook, the corporate’s e mail consumer, climbed to about 130,000 on the outage monitoring web site Downdetector shortly after 1pm Jap Time (18:00 GMT), with some customers saying emails weren’t being despatched or acquired, whereas others couldn’t open their inboxes.
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By simply earlier than 3pm (20:00 GMT), that determine had fallen to about 77,000.
Customers additionally reported having hassle accessing Microsoft’s office messaging app Groups and its AI assistant Copilot, together with different Microsoft 365 companies. The corporate mentioned the problems might affect customers in any area.
Microsoft mentioned on X that servers had been unavailable and failing automated well being checks, placing stress on these nonetheless working. It mentioned it was testing a configuration change to redistribute visitors that was elevated on elements of its infrastructure and restarting affected companies to carry them again on-line.
“We’re working to soundly return them to service,” the corporate mentioned.
Microsoft didn’t state when it anticipated companies to be absolutely restored.
