OHIO Systems Status

Office 365: Outlook (email and Teams calendar)

Incident Report for Ohio University

Update

Updates from Microsoft 365
User impact: Users may be unable to connect to multiple Microsoft 365 services.

More info: Potentially impacted services include:
-Exchange Online
-Microsoft Teams
-SharePoint Online
-Microsoft Copilot 365
-Microsoft Defender XDR
-Microsoft Planner
-Microsoft To Do

Current Status: We're investigating an issue impacting multiple Microsoft 365 services and we've determined the affected infrastructure is experiencing elevated load across multiple regions. which is likely contributing to the connectivity errors.
Posted Nov 12, 2026 - 14:13 EST

Investigating

Office 365: Outlook (email and Teams calendar)

Microsoft has posted a service degradation notice about Outlook connectivity to Exchange Online. It appears to be a global issue affecting all, or at least most M365 tenants, not just OHIO. We do have reports from OHIO users that we are impacted. It also affects the calendar functionality in Teams, since that data is pulled from Exchange Online.

Other applications maybe impacted and will be communicated as soon as we are aware of them.

Affected services:
Exchange Online
Teams Calendar

You are receiving this message either because you have subscribed to updates at https://status.ohio.edu or because you are part of the core user group for the service(s) listed above.
Posted Nov 12, 2026 - 13:48 EST
This incident affects: Other Microsoft 365 Apps & Services (Microsoft Forms, Microsoft Office Online, Microsoft OneNote, Microsoft Power Automate, Microsoft Power BI).