A global Microsoft 365 outage has hit millions – what happened and when will it be fixed?
Also reported by CBS News, The Hill, BBC Tech, France24, Guardian World, Al Jazeera, Newsweek, ABC News
Summary
A Microsoft 365 outage began around 6 p.m. GMT on Thursday and disrupted email, Teams, and other services across multiple regions. Microsoft traced most problems to Exchange and reported gradual recovery on Friday, while engineers worked to address overloaded and unresponsive servers.Key Facts
- Down Detector showed a rise in reports of Microsoft 365 problems around 6 p.m. GMT on Thursday.
- The outage affected Outlook email, Teams, and other Microsoft 365 services.
- Microsoft said most problems had been narrowed to Exchange, the email service behind Outlook.
- Microsoft indicated that a configuration update overloaded some servers and caused them to go offline.
- Attempts to restore servers led some to become unresponsive again as traffic returned.
- By Friday midday UK time, Microsoft reported improving service in Europe, North America, and Asia Pacific, with Japan stable.
- Affected organizations included UK police, health services, schools, the Bank of England, government agencies, airlines, and businesses in several countries.
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