Just hours after a fairly wide-reaching Anthropic Claude issue, it seems that Microsoft's 365 and Outlook are both experiencing a service disruption. And it's a confirmed one, so whether you can't get Outlook to work or you're having issues with one of the facets under Microsoft 365, you're not alone.
Down Detector reports for Microsoft Outlook and Microsoft 365, as well as the Microsoft Store and Teams, began spiking at about 2:30PM ET, and Microsoft formally acknowledged the issue a bit after 3PM ET.
To cover this disruption, which is largely impacting Microsoft Outlook and Microsoft 365, TechRadar is spinning up a live blog.
Let's take a count of where things currently stand – while I was able to load Microsoft's own status page, which confirmed an active disruption with Microsoft 365, I'm having some difficulty loading it at the moment.
You can try loading that here, but I will also embed Microsoft's post on X (formerly Twitter) below, which also confirms the issue.
We're investigating a potential issue impacting multiple Microsoft 365 services, including Outlook, Microsoft Defender and Microsoft Purview. Further information can be found in the admin center under MO1221364.January 22, 2026
Source: TechRadar
