The tech giant said it was investigating the incident.
Microsoft Exchange and Teams Calendar are currently down worldwide, and Outlook is also “down,” according to users who have reported being unable to view or send emails.
Microsoft did not specify the cause of the problems, but said: “We have begun a remediation process that is currently underway in the affected environment.”
“While this is ongoing, we are initiating manual reboots on a subset of machines that are not in a healthy state,” the company said six hours after reports of the Microsoft 365 outage surfaced.
Messages on the Downdector website, which monitors outages, appeared shortly before 8:40 a.m. CET, where more than 800 user reports of services being down were recorded.
When loading Outlook, an error page appears: “Your request cannot be completed at this time”.
Why is it not working?
Microsoft said it had detected a “recent change that we believe has led to the impact.” However, the company did not provide any details or specify the exact cause.
“We have begun rolling back the changes and are exploring what additional actions are needed to mitigate the issue,” the company said in a post on social media platform X on Monday morning.
Users also reported that Outlook was down.
“All morning down, Exchange Online, Teams, Outlook, none of these services are working as expected, also can’t log in to view quarantined emails,” wrote one user on X.
Users from the Netherlands, Poland, France, and Sweden wrote on X that they had problems with Microsoft’s Outlook.
According to the website of the email marketing platform Mailmeteor, problems with the services are observed around the world.
“The service outage is currently affecting Microsoft Outlook. More than 423 notifications have been made today,” the website says.
