Microsoft is continuing to work on a widespread Microsoft 365 outage that has disrupted Outlook, Teams, Copilot and other workplace services. Although some regions have reported partial recovery, the company says its initial fixes have not delivered sustained results, leaving users facing continued access problems.
Microsoft is struggling to restore several of its workplace services after a major outage disrupted access to Outlook, Microsoft Teams, Copilot and other Microsoft 365 applications. The disruption, which began on Thursday, November 12, has affected users across multiple regions, with some customers still experiencing problems on Friday.
The technology giant has confirmed that it is working to bring affected infrastructure back to a stable condition. However, despite several troubleshooting measures, the company has warned that its recovery efforts are not progressing as expected.
The outage has caused problems for businesses, government departments and educational institutions that rely on Microsoft’s productivity tools for everyday communication and work.
Microsoft Reports Partial Recovery, But Services Remain Unstable
In its latest updates, Microsoft said it had been adjusting traffic protocols, redistributing connections across its global infrastructure and applying targeted traffic-management measures to reduce pressure on affected systems.
The company observed partial recovery in some regions where these changes were implemented. However, the improvements have not resulted in sustained service restoration.
Microsoft said it was reviewing alternative measures to improve infrastructure stability and increase available capacity. It also confirmed that multiple technical teams were working to reduce the impact, address existing problems and return affected portions of its infrastructure to a healthy state.
Earlier, the company acknowledged that changes introduced to improve service availability were not producing the expected results.
Why Are Outlook and Other Microsoft Services Not Working?
Microsoft said the disruption was linked to elevated infrastructure load across multiple regions. However, the increased load was not caused by a sudden rise in overall user traffic.
According to the company’s investigation, a number of servers had unexpectedly become unavailable, shifting additional workloads onto the remaining infrastructure and creating further pressure on the systems.
Microsoft has been examining server performance, network traffic and infrastructure routing to identify the reasons behind the failures. It has also been restarting affected components and exploring alternative ways to restore capacity.
The company has not yet confirmed the precise root cause of the wider incident.
Which Microsoft Services Have Been Affected?
The outage has primarily affected services connected to Exchange Online, Microsoft’s cloud-based email and calendar platform. The disruption has also affected other Microsoft 365 applications and features that rely on the same infrastructure.
Some of the reported problems include:
- Outlook: Users have experienced difficulty accessing mailboxes, opening inboxes and sending or receiving emails.
- Microsoft Teams: Some features dependent on Exchange Online, including calendar access and meeting scheduling, have been affected. Core messaging and online meetings have largely continued to function for many users.
- Microsoft Copilot: Some users have been unable to load Copilot Chat or receive responses. Access to workplace information such as emails, calendars and files has also been disrupted.
- SharePoint Online and other Microsoft 365 services: Certain features and applications relying on affected infrastructure have experienced connectivity or performance issues.
- Other workplace tools: Services including Planner, To Do, Defender and Purview have also been listed among the potentially affected products.
The exact impact may vary depending on the service, region and connection method being used.
Downdetector Reports Show Widespread User Complaints
Outage-monitoring platform Downdetector recorded a sharp increase in reports from users experiencing problems with Microsoft services.
Reports indicated that users in different parts of the world were struggling to access Outlook, Teams, Copilot and other workplace applications. Although the number of complaints began declining after reaching a peak, problems continued for many users.
The disruption also affected organisations that depend on Microsoft’s cloud-based services. Michigan’s Department of Technology, Management and Budget, for example, informed residents that a widespread Microsoft 365 outage was causing technical issues with email and other Microsoft applications. It warned that responses to emails could be delayed.
When Will Microsoft Outlook and Teams Be Fully Restored?
Microsoft has not announced a confirmed timeline for the complete restoration of all affected services.
The company is continuing to monitor infrastructure performance, redistribute traffic and restart affected servers. It is also reviewing alternative recovery measures after its earlier changes failed to deliver lasting improvements.
For now, users may experience gradual or inconsistent recovery depending on their region and the Microsoft services they are trying to access.
Customers can monitor Microsoft’s official service updates for the latest information on the incident.
The bottom line: Microsoft’s global outage has disrupted essential workplace tools, including Outlook, Teams and Copilot. While partial recovery has been observed in some regions, the company is still working to stabilise its infrastructure and has yet to confirm when all affected services will return to normal.
