Microsoft outage: Microsoft 365, Teams, Outlook, Copilot all impacted

Microsoft reported on Thursday, Nov. 12 that an outage affecting Microsoft 365 business and enterprise customers was caused by a number of servers being unexpectedly unavailable, straining remaining infrastructure, according to a Microsoft 365 Status post on X. Microsoft said users in any region may lose Microsoft 365 service connectivity, with the status page listing Microsoft Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot 365 and Microsoft Defender XDR as affected, and Downdetector showed elevated reports for Teams, Outlook, Copilot AI, Microsoft 365, Azure and the Microsoft Store. Microsoft said it paused all deployments and configuration changes while reviewing recent changes and moved traffic off the affected infrastructure, and the incident is tracked under EX1550543 in the Microsoft 365 admin center.

Microsoft outage: Microsoft 365, Teams, Outlook, Copilot all impacted Timothy Beck Werth https://mashable.com/author/timothy-beck-werth Read Full Bio https://mashable.com/author/timothy-beck-werth Updated on Thursday, Nov. 12 at 12:37 p.m. ET — As of this writing, users in multiple regions are still having trouble accessing Microsoft 365. Microsoft's latest update to users, posted to X https://x.com/MSFT365Status/status/2120941584220827979 , states, "We determined the elevated load isn't driven by an increase in traffic, but by a number of servers being unexpectedly unavailable; straining the remaining infrastructure. We're working to safely return them to service." Updated on Thursday, Nov. 12 at 2:29 p.m. ET — According to the latest update on the Microsoft https://mashable.com/category/microsoft service health status webpage, users may have trouble accessing Microsoft Exchange Online, Microsoft Teams, SharePoint Online, Microsoft Copilot 365, and Microsoft Defender XDR. You May Also Like The status page https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect stated that the current issues affect Microsoft 365 business and enterprise customers, not Microsoft's consumer tech products. "We're aggressively pursuing all pathways to reduce impact," the company wrote in an update to users. "As a precaution, we've paused all deployments and configuration changes while we review recent changes for any correlation to this event. We've also moved traffic for some services off the affected infrastructure to further reduce load, with additional traffic moves in progress." Microsoft https://mashable.com/category/microsoft customers are reporting problems accessing a variety of the company's software products and services on Thursday afternoon. Terms of Use https://www.ziffdavis.com/terms-of-use and Privacy Policy https://www.ziffdavis.com/ztg-privacy-policy . What services are affected by the ongoing Microsoft outage https://mashable.com/tech/microsoft-outlook-outage-nov-12-2026 ? Downdetector https://downdetector.com/ shows sharply elevated reports of problems for the following Microsoft services: - Microsoft Teams - Microsoft Outlook - Microsoft Copilot AI - Microsoft 365 - Microsoft Azure - Microsoft Store The company acknowledged an outage through its Microsoft 365 Status account on X: This Tweet is currently unavailable. It might be loading or has been removed. https://twitter.com/MSFT365Status/status/2120938282204688468 While the initial update indicated the outage was impacting email inboxes "in the Americas," later updates confirmed that other regions and products were also being impacted. An update posted at 1:07 p.m. ET stated: "We've confirmed the issue may affect Microsoft 365 service connectivity for users in any region, more information will be provided in the Microsoft 365 admin center under EX1550543." The company added, "We've begun redistributing connection traffic across our broader worldwide infrastructure to help balance the load." The problem was so severe that some customers may not be able to access the Microsoft 365 admin center, as the company wrote on X users should instead refer to the Microsoft service status webpage https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect . However, this page was also down for part of the day, according to multiple Mashable reporters. Mashable contacted Microsoft with questions about the outage, and we'll update this story if we receive a response. This is a developing story... Topics Apps & Software https://mashable.com/category/apps-software Microsoft https://mashable.com/category/microsoft Timothy Beck Werth is the Tech Editor at Mashable, where he leads coverage and assignments for the Tech and Shopping verticals. Tim has over 15 years of experience as a journalist and editor, and he has particular experience covering and testing consumer technology, smart home gadgets, and men’s grooming and style products. Previously, he was the Managing Editor and then Site Director of SPY.com, a men's product review and lifestyle website. As a writer for GQ, he covered everything from bull-riding competitions to the best Legos for adults, and he’s also contributed to publications such as The Daily Beast, Gear Patrol, and The Awl. Tim studied print journalism at the University of Southern California. He currently splits his time between Brooklyn, NY and Charleston, SC. He's currently working on his second novel, a science-fiction book.