Microsoft probes global outage hitting Outlook, Teams, and Copilot

Microsoft is investigating a global outage affecting Outlook, Teams, and Copilot, with infrastructure strained by "a number of servers being unexpectedly unavailable." The company is testing a configuration change to address the issue. Microsoft first acknowledged Teams issues for North American users early this morning, then expanded the problem to "users in any region," citing difficulties accessing email inboxes. Affected products include Outlook, Exchange Online, Teams, OneDrive, Copilot, SharePoint Online, Defender XDR, Planner, To Do, and Purview. The company has initiated a restart of all affected servers and is monitoring their return to service. Microsoft initially found no change correlated with the impact's start but later identified "a small number of configuration updates" that may have contributed. An alternative system has allowed "a subset of affected servers to successfully return to service," though the change is not being applied more broadly. Updates are being posted on Microsoft's status page and X account.