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.

Thousands of Microsoft 365 customers worldwide reported having issues with services like Outlook and Teams on Monday. In social media posts and comments on platforms like

The outage was another jarring reminder that the move to cloud services increases dependence on outside vendors that periodically fail to function. While security experts have lon

S ome office workers who rely on Microsoft Outlook and related productivity apps like Teams were discovered that those programs were taken down by outages early Monday. Reports of

Microsoft said most Outlook and Teams services had been restored as of Monday evening, after more than 24 hours of technical delays.

Microsoft 365 users on Monday have seen ongoing software delays and a massive outage for hours on its Outlook and Teams applications.

A global glitch shut down Microsoft 365 applications like email, calendars, and Powerpoint. The tech giant said it was working on a fix.

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