Access or performance issues with Outlook.com or OneDrive service

Title: Access or performance issues with Outlook.com or OneDrive service
User impact: Users may experience access or performance issues with Outlook and OneDrive services.
More information: Users may be experiencing the following issues with Outlook and OneDrive.
Outlook:
-Users may be unable to login successfully or experience delays when attempting to access
-Sending or receiving emails may be delayed or fail to send through any connection method
OneDrive:
-Users may be unable to access OneDrive or experience delays when attempting access
-Users may fail to return user data or receive partial data
Current status: We’ve confirmed that service availability has almost returned to normal levels, and most users should be experiencing relief. For the remaining limited impact, we’re continuing to perform systematic restarts to ensure full recovery.
Next update by: Wednesday, October 1, 2025, at 12:30 PM UTC

Title: Access or performance issues with Outlook.com or OneDrive service
User impact: Users may experience access or performance issues with Outlook and OneDrive services.
More information: Users may be experiencing the following issues with Outlook and OneDrive.
Outlook:
-Users may be unable to login successfully or experience delays when attempting to access
-Sending or receiving emails may be delayed or fail to send through any connection method
OneDrive:
-Users may be unable to access OneDrive or experience delays when attempting access
-Users may fail to return user data or receive partial data
Current status: Service availability continues to improve steadily, and the backlog of messages is being processed. We’re actively monitoring service telemetry to ensure a complete recovery.
Next update by: Wednesday, October 1, 2025, at 10:30 AM UTC

Title: Access or performance issues with Outlook.com or OneDrive service
User impact: Users may experience access or performance issues with Outlook and OneDrive services.
More information: Users may be experiencing the following issues with Outlook and OneDrive.
Outlook:
-Users may be unable to login successfully or experience delays when attempting to access
-Sending or receiving emails may be delayed or fail to send through any connection method
OneDrive:
-Users may be unable to access OneDrive or experience delays when attempting access
-Users may fail to return user data or receive partial data
Current status: We’ve confirmed the revert of our change in combination with manual restarts of affected infrastructure to expedite recovery has been successful. We’ll continue to apply these targeted restarts as we continue to monitor the service health for recovery.
Next update by: Wednesday, October 1, 2025, at 8:30 AM UTC

Title: Access or performance issues with Outlook.com or OneDrive service
User impact: Users may experience access or performance issues with Outlook and OneDrive services.
More info: Users may be experiencing the following issues with Outlook and OneDrive.
Outlook:
-Users may be unable to login successfully or experience delays when attempting to access
-Sending or receiving emails may be delayed or fail to send through any connection method
OneDrive:
-Users may be unable to access OneDrive or experience delays when attempting access
-Users may fail to return user data or receive partial data
Current status: We’ve identified a portion of infrastructure responsible for processing request flow traffic isn't operating at expected thresholds in our Outlook and OneDrive services. We’ve identified a potential configuration change that could be attributing to the cause of impact. We’ve reverted this change and are monitoring the service to confirm if this helps alleviate impact.
Next update by: Wednesday, October 1, 2025, at 7:00 AM UTC