Microsoft 365 outage: Microsoft is experiencing a widespread Microsoft 365 outage affecting Outlook/Exchange Online and related services. AJTC is aware and actively monitoring and tracking it. Email remains accessible through AJTC’s email continuity platform: Click here to access it, or call us for help.

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Service incident

Microsoft 365 outage

We are aware of the issue, actively monitoring and tracking it, and in contact with Microsoft. Here is what we know and what to expect.

Business blocked? 24/7 support708.942.8200Tap to call your Chicago team

Current status

Microsoft has reported partial recovery but has not declared the incident resolved.

Last Microsoft update: Nov 12, 9:37 PM CT / 8:37 PM MST. Microsoft incident IDs: EX1550543 (Exchange Online), MO1550821 (Microsoft 365).

What may be impacted

  • Outlook / Exchange OnlineMailbox access may fail in Outlook web, desktop and mobile. Email delivery may be delayed.
  • Microsoft TeamsCalendar features, live event creation and channel changes may fail. Chat, channel messages and meetings mostly work.
  • SharePoint OnlineFeatures that depend on Exchange are affected. Files stored directly in SharePoint still open.
  • Security & complianceDefender XDR, Defender for Office 365 and Purview may show delays or gaps in alerts.
  • Admin & managementMicrosoft 365 admin centers, Intune, Microsoft Graph and Universal Print are listed by Microsoft.
  • Other servicesCopilot, Planner, To Do, Power BI and Fabric, and some Windows 365 Cloud PCs are also listed by Microsoft.

What you can do

  • You can still access your email through AJTC’s email continuity platform. Click here to access it. Call AJTC if you need assistance accessing it.
  • Do not remove or re-create Outlook profiles, reset passwords or re-add accounts. This is on Microsoft’s side and those steps will not help.
  • Mail sent to you is queued and should arrive once service is restored. Senders may see delayed-delivery notices.
  • For anything urgent, use phone, text or Teams chat (where available) in the meantime.
  • Retrying repeatedly can add load. Wait a few minutes between attempts.
  • Call AJTC 24/7 if your business is blocked. We are happy to help with workarounds.

Not all clients will see every symptom. Impact varies by region and tenant. For live detail, see Microsoft 365 Status. Questions? Call us at 708.942.8200.