Microsoft 365 Outage Disrupts Outlook and Teams in at Least 74 Countries

A major global outage disrupted Outlook, Teams and other Microsoft 365 services, affecting users in at least 74 countries. People reported trouble sending emails, joining meetings and receiving verification codes for bank transfers. Businesses, schools, hospitals, courts and government offices were also affected. The disruption began on Thursday afternoon. In the UK, pharmacies struggled to receive prescriptions, while a jail in Colorado paused online bond payments. Officials in the Philippines and Japan also reported delays and email problems. Microsoft said the outage was not caused by a cyberattack. It blamed elevated server load and said some servers became unexpectedly unavailable. The company applied a patch to address authentication and routing problems, and said recovery was progressing, though some users still faced delays and intermittent access. Microsoft extended its email timeout window to 48 hours to help prevent delayed messages from being lost. The company said it would publish a report on the root cause after recovery was complete.

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