Cisco Secure Email Threat Defense incident
Service Degradation in North American Environment
Resolved after 17 hours 5 minutes, affecting Management Portal, on January 22, 2026.
Secure Email Threat Defense is experiencing an intermittent service degradation. We are working to address this issue and will post an update when it is resolved. Issue Details: Microsoft is currently experiencing service degradation within their Office 365 (O365) environment. For the latest updates, please visit: https://status.cloud.microsoft/ Impact Details: Customers may observe a backlog of active email recipients pending delivery to O365. Problem Symptoms: Delays or queuing of email recipients pending delivery to O365. Workaround/Solution: There is no workaround or solution available at this time. Recommendations: We are actively monitoring updates from Microsoft and will continue to provide timely information as the situation evolves.
Affected components
Update timeline
- investigating Jan 22, 2026, 09:31 PM UTC
Secure Email Threat Defense is experiencing an intermittent service degradation. We are working to address this issue and will post an update when it is resolved. Issue Details: Microsoft is currently experiencing service degradation within their Office 365 (O365) environment. For the latest updates, please visit: https://status.cloud.microsoft/ Impact Details: Customers may observe a backlog of active email recipients pending delivery to O365. Problem Symptoms: Delays or queuing of email recipients pending delivery to O365. Workaround/Solution: There is no workaround or solution available at this time. Recommendations: We are actively monitoring updates from Microsoft and will continue to provide timely information as the situation evolves.
- resolved Jan 23, 2026, 02:37 PM UTC
This incident has been resolved.
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