Rafael Pfister
+41 58 510 22 08 Consulting

Live ticker: Exchange Online and Microsoft 365 outages

When Exchange Online and Microsoft 365 suffer a large-scale outage, I track the situation here. A job checks Microsoft's status posts every two hours; every change adds a new update. All article subscribers receive the updates by email.

  1. Ongoing Since November 12, 2026 · 9 updates Exchange Online: worldwide outage of mailbox access Microsoft reports broad recovery and stable service across many areas. The underlying issue has been addressed, and service is still being restored for remaining customers and regions. Microsoft attributes the incident to an issue during an earlier network-capacity upgrade that surfaced after a later network change. According to Microsoft, the outage was not related to a cyberattack or AI features. Last update: November 13, 2026 at 06:57 PM (Swiss time)