Microsoft Teams, Outlook and Exchange are currently down for many users worldwide.
Although it's currently unclear exactly how pervasive it is, there appears to be a significant outage for many Microsoft 365 users globally. Reports on Downdetector, a platform that monitors service outages, began appearing in early Monday morning BST and CET as workers were logging in to start their working week. Over 800 users reported issues with the services, indicating a widespread disruption.
Among the issues specifically cited are the inability to access Teams Calendar, Outlook, and Exchange, and Outlook crashing for some users. Others could not load or send email attachments or could not log into the server. Some users reported partial functionality of the services, with specific features working normally, while others experienced issues. For example, emails could be received, but attachments might fail to load correctly.
Microsoft has said it's looking into the incident:
We’re investigating an issue impacting users attempting to access Exchange Online or functionality within Microsoft Teams calendar."
Microsoft also directed affected users to its online admin centre.
On X on Monday morning, Microsoft provided an update, saying it found "a recent change which we believe has resulted in impact". "We've started to revert the change and are investigating what additional actions are required to mitigate the issue," it added.
