Microsoft 365 and Outlook Down for Thousands
Microsoft outage January 22 2026
Thousands of users are experiencing a second consecutive day of technical disruptions with Microsoft services on Thursday, January 22, 2026. According to the outage-tracking site Downdetector, reports of service failures spiked significantly around 12:00 PM ET, with more than 20,000 users reporting issues with Microsoft Outlook alone. Additional thousands reported concurrent problems with the broader Microsoft 365 suite, the Microsoft Store, and Microsoft Teams. While a brief outage also occurred on Wednesday, January 21, the current disruption appears to be more extensive, primarily affecting users’ ability to send and receive emails and access administrative tools.
Microsoft confirmed the investigation into the outage via its official @MSFT365Status account, identifying a specific failure in service infrastructure within North America. “We’ve identified a portion of service infrastructure in North America that is not processing traffic as expected,” the company stated in a social media post. Preliminary findings suggest that the issue is linked to a “reporting lag” in the infrastructure, which explains why official status dashboards may have remained green even as thousands of users reported total blackouts. The company is currently working to restore the impacted infrastructure to a healthy state under the incident code MO1221364.
The disruption has had a particularly severe impact on business operations, with many IT professionals reporting that the Microsoft 365 Admin Center is failing to load, preventing them from investigating the outage within their own organizations. Common symptoms reported by users include the “New” Outlook failing to load, email attachments not downloading, and “503 Service Unavailable” error codes. Some technical analysts have noted that the issue may be exacerbated by ISP routing problems that mimic a global outage, specifically affecting fiber connections in certain geographic regions.
This latest outage follows a period of heightened instability for major tech platforms in early 2026, including a massive Apple services outage earlier this week. While some services like Azure and Microsoft Defender saw initial spikes in reports that quickly declined, core productivity apps remain unstable for many users. Microsoft has advised affected customers to check the official Cloud Status page for real-time updates as engineering teams continue to mitigate the infrastructure failure.
