Sending, receiving, and organizing email in Outlook on the web for business
Microsoft has not published a confirmed restoration time for the current Exchange Online/Outlook outage as of November 12, 2026.
The issue is being tracked as EX1550543, with reported impact concentrated in the Americas; reports indicate partial improvement, but Microsoft has not confirmed full restoration.^1^
Check the latest tenant-specific update
If you are a Microsoft 365 administrator:
- Sign in to the Microsoft 365 admin center.
- Go to Health → Service health.
- Under Active issues Microsoft is working on, open the Exchange Online incident.
- Review Status, User impact, Last updated, and All updates.
Microsoft posts investigation, mitigation, recovery, and restoration updates there. Service Support Administrator and Helpdesk Administrator roles can also view service health.^2^
If the admin center is unavailable, monitor the public Microsoft service health status page. No local Outlook reconfiguration is indicated while the service incident remains active.
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