Microsoft says Microsoft 365 outage may affect any region

Microsoft said Thursday that connectivity problems affecting Exchange Online and other Microsoft 365 services could reach users in any region, as it worked to restore capacity across infrastructure experiencing elevated load.

The company initially reported trouble accessing Exchange Online mailboxes through multiple connection methods in the Americas. It later warned that the issue could affect Microsoft 365 connectivity globally. Microsoft’s status updates identified Exchange Online, Teams, SharePoint Online, Copilot and Microsoft Defender XDR among services experiencing disruption. Other reports also cited OneDrive and Azure, though the company did not say every listed service was unavailable to all users.

Microsoft said elevated load across infrastructure in multiple regions was likely contributing to connectivity errors. It said it was restarting and repairing affected infrastructure, redistributing traffic to other parts of its network and pausing deployments to reduce the impact. The company also said it was investigating an unexpected increase in a type of service traffic, while one update attributed the strain to servers becoming unexpectedly unavailable. The precise...