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.

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

Microsoft said it's working to restore many programs after an outage Monday, but said progress has been slower than expected.

In social media posts and comments on platforms like outage tracker Downdetector, some impacted said that they were having trouble seeing their emails, loading calendars or opening other Microsoft 365 applications such as Powerpoint.

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

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

Nearly 2,000 users reported issues with Microsoft Outlook’s email services in the past 24 hours, according to Downdetector. The outage-monitoring website showed about 1,900 reports citing issues with Outlook as of 9:30 a.

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.