Microsoft is reporting a Microsoft 365 service disruption that may prevent users from connecting to email, Teams and several other business tools. Its public service-health page continued to show a service degradation Thursday afternoon.
In an update posted at 4:01 p.m. Eastern time, Microsoft said an alternative health check had allowed a subset of affected servers to return to service. The company was applying that change more broadly, but had not marked the incident resolved.
Which Microsoft services may be affected?
Microsoft listed Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot 365, Microsoft Defender XDR, Microsoft Planner, Microsoft To Do and multiple Microsoft Purview services as potentially affected. Exchange Online supports business email accessed through Outlook.
The notice concerns Microsoft 365 business and enterprise services. It does not establish that every Microsoft customer or every Outlook account is affected.
What is Microsoft doing to restore access?
The company said it had validated an alternative health check on a subset of affected infrastructure and was extending the change. It was also preparing an automated recovery process to detect and restart unresponsive servers. Microsoft said it was investigating a small number of configuration updates as potential contributors to the disruption.
Microsoft said its public notice was available because some administrators might also be unable to reach the Microsoft 365 admin center. It listed its next update for 5:30 p.m. Eastern time Thursday. That is an update deadline, not a promised restoration time.
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