Microsoft has confirmed a system outage affecting Outlook and Teams, with over 100,000 user reports logged. The company is working to restore its servers, though there is no confirmed information yet regarding the number of users affected in Thailand.
November 13, 2026 – Microsoft 365 is experiencing a widespread outage, impacting users across various regions. The disruption primarily affects the Outlook email service and the online meeting platform Microsoft Teams, along with other services within the Microsoft 365 suite, leaving some users unable to connect or access these services as usual.
According to Reuters, the outage began on November 12 (U.S. time). Downdetector, a website that tracks the status of online services, recorded a peak of over 138,000 reports regarding issues with Outlook. It should be noted that this figure represents the number of reports submitted by users, rather than the total number of individuals affected.
In addition to Outlook, users have reported issues with Microsoft 365 and Teams, including difficulties sending or receiving emails, joining online meetings, or accessing work-related services—disrupting operations for organizations and businesses that rely on Microsoft’s systems.
In Thailand, the outage occurred between the night of November 12 and the morning of November 13, 2026 (Thailand Standard Time). As of 2:07 a.m. on November 13, Downdetector showed a high volume of reports concerning Outlook, Microsoft 365, and Teams in the United States. Microsoft has acknowledged that the issue may also be affecting service connectivity in other regions.
Users in Thailand who are impacted may experience difficulties with corporate email communications or participating in online meetings. …and access to cloud-based documents. However, there have been no confirmed reports regarding the number of affected users in Thailand, nor a clear timeline of when the issues occurred within the country.
Microsoft has clarified that preliminary investigations indicate some servers suddenly became unavailable, forcing the remaining servers to handle an increased workload; this led to connectivity and service disruptions across various regions.
The company has taken urgent corrective measures, including rerouting traffic to other systems, temporarily halting certain configuration changes, and restarting the affected servers to gradually restore full service.
Microsoft later reported progress in system recovery, noting that some servers have been brought back online and signs of recovery have emerged in certain regions, though some users initially continued to experience connectivity issues.
Meanwhile, reports emerged of delays in sending emails via Hotmail and Outlook.com—Microsoft’s email services for general users—around the same time. However, as there is no confirmation that these issues share the same root cause as the Microsoft 365 outage, it cannot be definitively concluded that Hotmail was directly affected by this incident.