Cisco Secure Email Threat Defense incident
Service Degradation in North American Environment
Cisco Secure Email Threat Defense experienced a minor incident on January 22, 2026 affecting Management Portal, lasting 17h 5m. The incident has been resolved; the full update timeline is below.
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.