Microsoft is investigating an issue with its Microsoft 365 service and its Teams app, with some users reporting to DownDetector that they are having problems using services such as Exchange and Outlook.

Microsoft said Monday that it has identified the cause of a major Outlook and Teams outage, and is deploying a fix to the problem.

Microsoft 365 users may be having issues signing into their email accounts Monday morning. Microsoft is investigating the issue with Exchange and Outlook and is posting updates on its X account since about 4 a.m. MT.

Thousands of people reported issues with Microsoft Outlook Monday morning, according to Downdetector. Reported issues with the Outlook website and app began to spike around 9 a.m. Monday. By 12:30 p.m.

Microsoft said it is assessing "an issue impacting users attempting to us Exchange Online or functionality within Microsoft Teams calendar."

Several Microsoft programs, including Outlook, Microsoft 365, and Teams, are experiencing outages, according to reports on Downdetector.

Thousands of Microsoft 365 customers worldwide reported having issues with services like Outlook and Teams on Monday.

Microsoft 365 users are experiencing issues on Monday with the free email service Outlook. Users began reporting that outage just before 8 a.m. ET, according to Downdetector. It appears most people are reporting problems when trying to use the website version.

Some Microsoft users are reporting issues with Outlook and other Microsoft 365 programs on Monday morning, according to the website Downdetector. User reports of Microsoft Outlook issues began around 8 a.

User reports on Downdetector show issues with Microsoft 365, Teams, Outlook, and the Microsoft Store began around 5 a.m. ET on Monday. In a series of posts to X, the Microsoft 365

The website Downdetector showed a marked increase in Microsoft 365 outages between 8 a.m. and 10 a.m., with 86% of the outages affecting Outlook, 9% affecting Exchange, and 6% aff