HUIT Service Status Dashboard

Microsoft Email Service Unavailable

Incident Report for HUIT

Investigating

Microsoft has confirmed a global issue with Exchange Online that is impacting sending and receiving email. Intermittent connectivity issues have also been reported impacting Microsoft Teams, SharePoint Online and Microsoft Copilot 365.

This is a broader Microsoft service issue and is not specific to Harvard. Microsoft is actively working to resolve the issue.

During this time, other collaboration services such as Slack and g.harvard remain available.

Posted Nov 12, 2026 - 13:24 EST

This incident affects: Email Services (Office 365 Email & Calendar).