Microsoft reports that some restored servers are becoming unresponsive again, and they are investigating the cause. Recovery efforts continue to try and stabilize affected servers and restore service incrementally.
Posted Nov 12, 2026 - 19:28 EST
Update
Microsoft reports that some affected servers have been returned to service and remain stable, with some limited recovery observed so far. Recovery efforts are ongoing, and users may see gradual improvements as capacity is restored and applications reconnect.
Posted Nov 12, 2026 - 18:14 EST
Update
Disruptions to Microsoft 365 services, including Outlook, Teams, OneDrive, and Copilot, continue. There has been no significant change since our previous update. Microsoft continues working to restore services but has not provided an estimated time for resolution. OIT is monitoring the situation and will provide updates as more information becomes available.
Posted Nov 12, 2026 - 17:13 EST
Update
The Microsoft 365 service disruption remains ongoing, with no significant change since our last update. Users may continue to experience issues with Outlook, Teams, OneDrive, and Copilot. Microsoft has not provided an estimated time for service restoration. OIT will continue to share updates as more information becomes available.
Posted Nov 12, 2026 - 16:00 EST
Update
There are continued disruptions with Microsoft 365 services, including Outlook, Teams, OneDrive, and Copilot, with no significant improvement reported at this time. Microsoft is still working to resolve the issue but has not provided an estimated time for service restoration. OIT continues to monitor the situation and will share updates as more information becomes available.
Posted Nov 12, 2026 - 15:11 EST
Update
The issue affecting Microsoft 365 services, including Outlook, Teams, OneDrive, and Copilot, is ongoing. Microsoft continues to work toward a resolution but has not provided an estimated time for service restoration. OIT will share updates as more information becomes available.
Posted Nov 12, 2026 - 14:12 EST
Update
Microsoft is still working to resolve this issue. Users continue to experience disruptions with Microsoft 365 Mail and Copilot.
Posted Nov 12, 2026 - 13:49 EST
Identified
OIT has confirmed a service issue affecting Microsoft 365 Mail. Users may be unable to access their Exchange Online mailboxes through the Outlook client or Outlook on the web (OWA) at mail.duke.edu.
The vendor, Microsoft, is working to restore service but there is no estimated time to resolution.
If you have questions about this outage or would like to report additional service impacts please contact the OIT Service Desk (https://oit.duke.edu/help) or join the conversation on the 'University IT Outage Communication' MS Teams site.