Microsoft outage disrupts Outlook email for users worldwide

Microsoft is experiencing a global outage affecting Outlook email and other Microsoft 365 services, with users unable to send or receive messages. The company is working to restore service by redistributing connection traffic and investigating the cause. The issue, classified as "service degradation," began Thursday afternoon and also impacted Teams and Copilot, according to Downdetector. Microsoft determined the problem stems from an unexpected number of unavailable servers, not increased traffic, and has begun recovery for some users. Governments and companies worldwide, including the State of Michigan, reported disruptions and delayed responses. More than seven hours in, Microsoft warned that restored servers might become unresponsive again as it analyzes diagnostic data and limits traffic to affected infrastructure.