Microsoft 365’s Global Outage: What Happened and What It Means for IT

When email stops working, the first question is usually whether something is wrong with the computer. When calendars, customer communications, and parts of the support process start failing together, that question gets much bigger.The Microsoft 365 outage that began on Thursday, November 12, and continued into Friday, November 13, is a reminder of how much everyday work depends on the same underlying services. A business might describe Microsoft as its email provider. Its actual dependency can extend into scheduling, document workflows, security administration, and the tools other vendors have built around its data.I’m looking at this from the IT and managed service provider side: what Microsoft has established, what affected organizations are reporting, and what we should be able to do when the repair is outside our control.Status at the time of writingThis account was checked on November 13, 2026, at 9:57 a.m. Central Standard Time (15:57 UTC). Microsoft’s 14:56 UTC public…

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