Microsoft 365 outage cause revealed

Microsoft 365 suffered a major outage on Thursday, leaving some users unable to send or receive emails. That's obviously not ideal in the middle of a workday.

As the afternoon bled into the evening on the East Coast, the company said it was working toward a full resolution — though folks may still see issues — and shed some light on what caused the problem.

The most recent update on Microsoft's 365 status page indicated its infrastructure either mishandled or wasn't able to handle the traffic coming its way.