Ongoing since 05:58 PM UTC, affecting Messaging & Collaboration (Microsoft Office 365).
Microsoft is currently experiencing performance issues with Outlook. Users may experience issues accessing Exchange Online mailboxes through multiple connection methods including Outlook on the web and Outlook desktop app. OU IT technicians are working with the vendor to restore service as quickly as possible. Please check back at alerts.ou.edu for further updates. We apologize for any inconvenience and thank you for your patience.
Affected components
Update timeline
- investigating Nov 12, 2026, 05:58 PM UTC
Microsoft is currently experiencing performance issues with Outlook. Users may experience issues accessing Exchange Online mailboxes through multiple connection methods including Outlook on the web and Outlook desktop app. OU IT technicians are working with the vendor to restore service as quickly as possible. Please check back at alerts.ou.edu for further updates. We apologize for any inconvenience and thank you for your patience.
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