Microsoft 365 incident in progress
Since 12 November at 17:17 Paris time, Outlook mail and calendar are disrupted worldwide and outgoing mail is delayed. Teams, SharePoint and OneDrive are working. Nothing to do on your computers.
Latest Microsoft update
Gradual improvement across several services, according to Microsoft’s telemetry and customer reports. Service remains variable and capacity is not yet back to normal. Queued mail is processed as a priority and kept for 48 hours.
Next step
Microsoft’s next update is expected at 12:00 Paris time. This page is updated at every notice.
Timeline
- 10:57Gradual improvement across several services. Service still variable, capacity not yet back to normal.
- 10:03Early signs of stabilisation, capacity not yet back to normal, service still variable. Delayed messages are kept for 48 hours.
- 08:25A fix stabilises the servers where it is applied. Microsoft rolls it out first to regions in business hours.
- 05:10Partial recovery in several regions through traffic throttling and rerouting.
- 13 Nov, 02:06Technical cause identified: the process that establishes secure connections is overwhelmed and servers stop responding.
- 23:57First servers back in service, partial recovery in some regions.
- 20:06As a precaution, Microsoft pauses all deployments.
- 19:26The incident spreads to other Microsoft 365 services.
- 19:19Microsoft reports overloaded mail servers across several regions, reroutes traffic and restarts servers.
- 12 Nov, 17:17First Outlook mailbox connection errors.