Microsoft 365, Outlook, Teams And Other Services Hit By Widespread Outage

Microsoft is currently grappling with a widespread outage impacting key services such as Microsoft 365, Outlook, Teams, Copilot, OneDrive, and Azure. The disruption has persisted for over five hours, with tens of thousands of users encountering difficulties across the affected platforms. DownDetector reports a surge in outage reports, indicating a widespread issue rather than isolated incidents.

However, Microsoft has not yet provided a definitive timeline for the restoration of normal service. The company is actively investigating reports of users experiencing challenges accessing Exchange Online mailboxes through various connection methods in the Americas. Further details can be found in the Microsoft 365 admin center under EX1550543.

Microsoft initially attributed the disruption to several servers unexpectedly becoming unavailable, leading to increased loads across multiple regions and straining the company's infrastructure. The company has taken several steps to address the issue, including pausing all deployments, redirecting traffic away from the affected infrastructure, and restarting the impacted servers.

Despite these efforts, some restored servers have become unresponsive when they begin receiving traffic. Microsoft is currently investigating the cause of this issue and temporarily restricting certain types of traffic from reaching the affected infrastructure in select locations. Additionally, the company is rebuilding a subset of affected servers using a previous configuration to determine if this approach can prevent the same behavior from recurring.

While Microsoft has reported positive results from these efforts, it has not yet confirmed that the outage has been fully resolved.