A Microsoft 365 outage takes down corporate email for users worldwide
Microsoft confirmed a global outage of its 365 platform that prevents some users from accessing their Exchange Online mailboxes and services such as Copilot. The company attributes the failures to high load on part of its infrastructure in several regions, though it has not detailed the source of that overload or given an estimated time for restoration. Microsoft opened two incidents, EX1550543 and MO1550821, and says it is working to mitigate the impact. It has not specified how many users or companies are affected.
In 40 seconds
- Microsoft confirmed a global Microsoft 365 outage affecting access to Exchange Online mailboxes and services such as Copilot
- The company attributes the connection errors to high load on part of its infrastructure in several regions
- It opened two incidents, EX1550543 and MO1550821, and has not given an estimated time for restoration
IASummary generated by artificial intelligence from a story by EL PAÍS. It may contain errors: the original source prevails.




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