Microsoft Outage: Outlook, Teams, Microsoft 365, Copilot Are Not Working; Latest Update

A massive outage has hit Microsoft and its workspace applications like Teams, Outlook, Copilot, and other apps. According to the DownDetector tracker, thousands of users are struggling to open their email IDs, receive messages, or face errors in accessing these apps. The majority of complaints are about Microsoft Outlook, Teams, and 365.

Approximately 130,000 users have reported problems like accessing Outlook on outage tracker DownDetector after 1 PM ET on Thursday. 44% of the complaints were regarding using the Outlook app, while 23% of the complainants faced issues in receiving messages, and 17% of them reported issues in accessing Outlook on the website.

Microsoft Outlook is an email and calendar application offering web, PC, Mac, and mobile access as part of Microsoft 365, providing messaging, scheduling, contact management, and task organization services.

Meanwhile, thousands complained about issues faced in using Microsoft’s workplace messaging app Teams, AI assistant Copilot, and Microsoft 365.

Is ChatGPT, Claude Impacted Because Of Microsoft Outage?

Their Microsoft 365 connectors, which let the AI assistants access a user’s work data with permission, ran into errors. OpenAI said new connections and some functions might fail. Anthropic said most requests involving mail, calendar and search through its connector were failing at the time of its update. It also flagged problems with Claude inside Outlook. Microsoft’s own Copilot could struggle to access work email, calendars or files, as per The Open Magazine report,

In its update, Microsoft said, “We’re investigating reports of users experiencing issues accessing Exchange Online mailboxes through multiple connection methods in the Americas.”

Microsoft revealed that a portion of infrastructure is experiencing elevated load across multiple regions, which is likely contributing to the connectivity errors.

They have begun redistributing connection traffic across their broader worldwide infrastructure to help balance the load. Microsoft said, “We’re aggressively pursuing all pathways to reduce impact. We’ve paused all deployments, we’re moving additional traffic off the affected infrastructure, and we’re restarting affected servers to return them to service.”

“We’re returning a portion of affected servers to the service, and they remain stable so far. We’re also shifting traffic to alternate routes wherever possible and observing limited recovery. In parallel, we’ve streamlined the process of returning the remaining affected servers to service. As capacity is restored, users may experience a gradual recovery as their clients reconnect,” the tech giant added.

On its Status Cloud, Microsoft said, users may be unable to connect to multiple Microsoft 365 services. Features of the Microsoft 365 services below that interact with Exchange Online and email services are impacted. Elements of those services that do not depend on interaction with Exchange Online remain functional.

Here are the impacts that users may face as Microsoft works to bring resolution, as per Status Cloud information.

– Exchange Online: Users may be unable to access their mailbox using Outlook on the web, Outlook desktop (MAPI), Exchange ActiveSync (EAS), or REST-based connections, and email delivery may be delayed.

– Microsoft 365 admin center: Admins may be unable to load some admin center pages.

– Microsoft 365 apps: Users may be unable to view their recently used files.

-Microsoft 365 Apps Admin Center: Multiple services including Cloud Update, Cloud Policy, and Inventory are affected.

– Microsoft 365 Education: Features including Assignments, Reading Progress, and Speaker Progress may be impacted.

– Microsoft Copilot 365: Users may be unable to load Copilot Chat or receive responses in the web and desktop apps, and Copilot experiences may be unable
to access work data such as email, calendar, and files.

– Microsoft Defender for Office 365: Safe Links may be unable to verify URLs, which may impact users clicking links in Outlook and Teams.

– Microsoft Defender XDR: Users may be unable to load Microsoft Defender portal pages or solution tabs.

– Microsoft Fabric: Users may encounter failures when exporting reports with sensitivity labels to PDF or PowerPoint, or when updating artifacts with sensitivity labels.

– Microsoft Graph: API requests that access Exchange Online data, such as mail, calendar, and contacts, may time out.

– Microsoft Planner: Users are experiencing Plan and Task operation reliability issues.

– Microsoft Purview: Multiple Purview services including Authorization, auto-labeling, Data Loss Prevention (DLP), Communication Compliance, and Data Classification are impacted, and users may be unable to load Microsoft Purview portal pages.

– Microsoft Teams: Scenarios that depend on Exchange Online, including calendar, meeting scheduling, and creating chats for organizations using Information Barriers, may fail. Core messaging and online meetings remain largely functional.

– Microsoft To Do: The app may not load, and users may see operation failures.

– Power BI: All users may intermittently be unable to export reports with MIP sensitivity labels to PDF in Power BI.

– SharePoint Online: Features that depend on Exchange Online may be impacted. Accessing files stored directly in SharePoint Online remains functional.

– Universal Print: Users may encounter errors submitting print jobs or using admin features.

– Windows 365: Customers who have configured their tenant and Cloud PCs to use Microsoft Purview Customer Key for Windows 365 Cloud PCs may have users who are unable to connect to their Cloud PCs.

Microsoft added on its Status Cloud, “We’re preparing a configuration change to address this behavior that can be applied across all affected servers, and we’re validating it on a subset of servers before applying it more broadly alongside restarts of the affected infrastructure. In parallel, we’ve begun reverting a recent network configuration change that correlates with the start of impact and are monitoring to determine whether this contributes to recovery. The temporary traffic limitations we previously described are now in effect in specific locations.”

The next update is expected by 3:00 AM UTC on Friday, November 13, 2026.