Office365 Outage

Thu, 12 Nov 2026 11:42:00 -0600

Investigating — Mitigations Applied by Microsoft failed to improve service availability. They are still investigating. More information will be posted here.

Users may be unable to connect to their mailboxes in Exchange Online

Impacted connection methods include: Outlook on the web, Messaging API (MAPI), Exchange ActiveSync (EAS), Representational State Transfer (REST) AP
Potentially impacted services include:

- Exchange Online

- Microsoft Teams

- SharePoint Online

- Microsoft Copilot 365

- Microsoft Defender XDR

- Microsoft Planner

- Microsoft To Do

- Microsoft Intune

- Microsoft Defender for Office 365

- Microsoft Purview: Multiple Purview services including Authorization, Auto Labelling, Data Loss Prevention (DLP), Communication Compliance, and Data Classification are impacted.

- Power BI: All users may intermittently be unable to export reports with MIP sensitivity labels to PDF in Power BI.

- Microsoft 365 Apps Admin Center: Multiple services including Cloud Update, Cloud Policy, and Inventory.

Microsoft is investigating under Issue(s) EX1550543 & IDMO1550821

Copilot on SIUE System Status

Office365 Outage