Thousands of Microsoft users lost access to Outlook email, Teams messaging and Copilot on Thursday after servers unexpectedly went offline. Reports of Outlook problems peaked at about 130,000 on the outage tracking site Downdetector shortly after 1pm Eastern Time, according to Al Jazeera. Some users said emails weren't being sent or received, while others couldn't open their inboxes. The outages also affected Microsoft 365 services across any region, Microsoft said.
Microsoft said servers were failing automatic health checks and putting pressure on remaining infrastructure. The company said it was testing a configuration change to redistribute traffic and restarting affected services. Microsoft did not say when it expected services to be fully restored.