Microsoft is struggling to restore Outlook, Teams, SharePoint and Copilot after an outage that began at 1:26pm ET on Thursday and can hit users in any region. Its advisory, MO1550821, says customers may be unable to connect to Exchange Online, Teams, SharePoint Online, Microsoft 365 Copilot and Defender XDR.
The company said the strain came from "a number of servers being unexpectedly unavailable", not from a rise in traffic. It has paused all deployments, moved traffic away from the affected systems and is restarting servers to bring capacity back.
A separate Teams incident earlier on Thursday, from 9:45am to 10:53am ET, has been resolved. Microsoft has not said whether the two are linked.
