Microsoft M365 down

Microsoft is currently reporting an Exchange-related service disruption, but no confirmed restoration time is publicly available; your administrator should track the tenant-specific incident in Microsoft 365 admin center → Health → Service health.

Check the restoration status

1. Sign in to the Microsoft 365 admin center with an administrator, Service Support administrator, or Helpdesk administrator account.
2. Select Health → Service health.
3. Under Active issues Microsoft is working on, open the Exchange Online incident.
4. Review:
   • Status
   • User impact
   • Last updated
   • All updates, including any estimated recovery or next-update time

Microsoft posts investigation, mitigation, and restoration updates on that incident page. When Exchange Online is shown as degraded, mail synchronization and delivery can be delayed while Microsoft restores the service; opening another support request for the same listed incident is generally unnecessary.^1^ ^2^

The public Microsoft Fabric status page also identifies an ongoing Microsoft Exchange service outage.^3^

SharePoint impact

There is no separate public confirmation here that SharePoint Online itself is down. Check SharePoint Online independently on the same Service health dashboard. If Exchange is listed but SharePoint is not:

• Select Report an issue on the Service health page.
• Describe that multiple users cannot connect to SharePoint.
• Check the Reported issues tab for Microsoft’s response.

Avoid changing Outlook profiles, SharePoint settings, or authentication configuration while a matching service incident remains active.

If you cannot access the admin center

Use the public Microsoft service health status page.^4^ If you are not a Microsoft 365 administrator, contact your organization’s administrator for the tenant-specific incident status and recovery estimate.

Administrators can receive updates by opening the incident and selecting Manage notifications for this issue, or by using Customize → Email on the Service health page.^1^

References

1. How to check Microsoft 365 service health
2. Find and fix email delivery issues as a Microsoft 365 for business admin
3. Microsoft Fabric service status
4. Microsoft service health status