OUTLOOK STATUS

No confirmed public restoration date or time is available; your Microsoft 365 administrator should open the tenant’s Service health incident because that is where Microsoft publishes the latest status, progress updates, and any estimated recovery time.

Check the incident timeline

1. Sign in to the Microsoft 365 admin center with a Service Support admin, Helpdesk admin, or another eligible administrator account.
2. Go to Health → Service health.
3. Under Active issues Microsoft is working on, select the Outlook or Exchange Online incident.
4. Review:
   • Status
   • Last updated
   • User impact
   • All updates
   • Any stated estimated recovery or mitigation time

Service Health contains tenant-specific incident details and updates. A “next update by” time only indicates when Microsoft plans to post another message; it is not necessarily the expected restoration time.^1^

Because the problem occurs in both classic Outlook and Outlook on the web, avoid client-only repairs such as recreating the Outlook profile unless Service Health shows no applicable incident.

Interpreting the symbols or language

In Service Health:

• Information icon: Advisory—some users are affected, but the service remains available.
• Exclamation icon: Active incident—a service or major function may be unavailable.
• Investigating: Microsoft is determining the cause and scope.
• Restoring service: Corrective action is being applied.
• Extended recovery: Recovery is underway but may take time to reach every affected system.
• Service restored: Microsoft has confirmed recovery.^1^

Service Health messages are written in English and can be machine-translated according to the administrator’s preferred Microsoft 365 language. If the translated text is unreadable or appears as symbols, switch the preferred language to English, reload Service Health, and read the original incident update.^1^

If the admin center cannot be opened, use Microsoft’s public status page. It provides broader status information but may not expose the detailed tenant-specific timeline.^2^

If no Outlook or Exchange Online incident appears, select Report an issue on the Service health page so Microsoft can correlate your tenant’s reports with those from other organizations.^1^

References

1. How to check Microsoft 365 service health
2. Microsoft service health status