MO1274150: Microsoft 365 suite Service Health Incident (Service Restored)

[365 Service Alert]

Users may experience issues accessing or using multiple Microsoft 365 services, including Microsoft Teams and Outlook.                                                                                                                                                                                      

Users may experience issues accessing or using multiple Microsoft 365 services, including Microsoft Teams and Outlook ID: MO1274150 Issue type: Incident Status Service Restored Impacted services Microsoft 365 suite Details Title: Users may experience issues accessing or using multiple Microsoft 365 services, including Microsoft Teams and Outlook User impact: Users may have experienced intermittent delays in email delivery and access to Microsoft 365 services. Final status: Following our mitigation of the identified network-level disruption, our remediation actions have completed and service health has been restored across affected Microsoft 365 services. We’ve confirmed through service telemetry that service has fully recovered and remains healthy. Scope of impact: Users accessing Microsoft 365 services in North America and Europe were primarily affected by this issue. The majority of customer reports originated from the US, Netherlands, UK, and Canada, though users in other regions may have been impacted as well. Start Time: Wednesday, April 8, 2026, at 2:38 PM UTC End Time: Wednesday, April 8, 2026, at 3:05 PM UTC Preliminary root cause: Configuration changes implemented by an external network provider affected internet traffic routing via this service provider, which resulted in connectivity issues impacting access to multiple Microsoft 365 services. After identifying the issue, we redirected service traffic through alternate network paths to mitigate the impact and restore service availability. Next steps: - We’re continuing our analysis of the underlying systems to understand the conditions that led to this issue and to implement safeguards that help prevent recurrence. We'll provide a preliminary Post-Incident Report within two business days and a final Post-Incident Report within five business days. Is this message helpful? Did you find this email helpful? Yes No To customize what’s included in this email, who gets it, or to unsubscribe, set your Service health preferences. If you are receiving this email because your Admin added you as a recipient, please contact your Admin to unsubscribe. Privacy Statement Microsoft Corporation, One Microsoft Way, ​Redmond, WA 98052​