Update - Microsoft reports that recovery is in progress for the global Exchange Online service disruption. Service availability and email delivery performance are improving across affected regions, with encouraging progress noted in Europe and North America. Some users may still experience intermittent issues as recovery actions continue.
Microsoft is prioritizing the reduction of email queues and backlogs. To protect delayed messages while delivery catches up, Microsoft has extended the email timeout window to 48 hours.
ETD customers may continue to experience increased mail queue depth and delayed email delivery to Microsoft 365 recipients until Microsoft's recovery is fully complete. Queued messages will continue to be retried automatically; no customer action is required at this time.
Microsoft has reported no evidence of malicious activity associated with this incident.
Our teams are closely monitoring delivery performance and will provide further updates as recovery progresses.
Nov 13, 2026 - 13:12 UTC
Microsoft is prioritizing the reduction of email queues and backlogs. To protect delayed messages while delivery catches up, Microsoft has extended the email timeout window to 48 hours.
ETD customers may continue to experience increased mail queue depth and delayed email delivery to Microsoft 365 recipients until Microsoft's recovery is fully complete. Queued messages will continue to be retried automatically; no customer action is required at this time.
Microsoft has reported no evidence of malicious activity associated with this incident.
Our teams are closely monitoring delivery performance and will provide further updates as recovery progresses.
Nov 13, 2026 - 13:12 UTC
Identified - Microsoft has confirmed a global service disruption caused by an anomalous increase in infrastructure load affecting Exchange Online. ETD customers may experience increased mail queue depth and delayed email delivery when SMTP delivery to Microsoft 365 MX endpoints encounters temporary deferrals.
Region/Datacenter: Global
Report date: November 12, 2026
Reference resources:
• https://admin.microsoft.com/#/servicehealth
• https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect
• https://downdetector.com/status/microsoft-365/
Nov 12, 2026 - 20:25 UTC
Region/Datacenter: Global
Report date: November 12, 2026
Reference resources:
• https://admin.microsoft.com/#/servicehealth
• https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect
• https://downdetector.com/status/microsoft-365/
Nov 12, 2026 - 20:25 UTC
North America
Degraded Performance
Management Portal
Operational
Public API
Operational
Cloud Service Provider
Operational
Message Processing
Degraded Performance
Europe
Degraded Performance
Management Portal
Operational
Public API
Operational
Cloud Service Provider
Operational
Message Processing
Degraded Performance
India
Degraded Performance
Management Portal
Operational
Public API
Operational
Cloud Service Provider
Operational
Message Processing
Degraded Performance
Australia
Degraded Performance
Management Portal
Operational
Public API
Operational
Cloud Service Provider
Operational
Message Processing
Degraded Performance
US Federal
Degraded Performance
Message Processing
Degraded Performance
Management Portal
Operational
Public API
Operational
Cloud Service Provider
Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.