A large-scale Microsoft 365 outage has occurred worldwide, with the impact spreading to the use of email and business services, including Outlook. Reports of the outage also surged in Japan, and recovery efforts are under way.
Microsoft's business software Microsoft 365 is experiencing disruptions worldwide, leaving users unable to connect to its email software and disrupting business operations. Microsoft announced the outage on X, formerly Twitter, and said that many services, including Outlook, could be affected.
Reports of problems with email and Microsoft 365 surged from around 4 a.m. on the 13th Japan time, with some regions recording more than several hundred reports of Outlook problems. Users in Japan have also reported problems with email and the AI feature Copilot.
The disruption is reportedly due to multiple servers unexpectedly becoming unavailable, and work is under way to restore the remaining infrastructure, which has been placed under strain. No timeline for full recovery has been given.
There have previously been global outages affecting Azure and Microsoft 365, as well as large-scale Windows-related outages in other years.