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We’re investigating reports of users experiencing issues accessing Exchange Online mailboxes through multiple connection methods in the Americas. More details can be found in the Microsoft 365 admin center under EX1550543.— Microsoft 365 Status (@MSFT365Status) November 12, 2026

We’ve monitored the status of the changes applied to improve serviceability and confirmed they’re not taking as expected. We’re identifying alternate workstreams that can be applied to increase capacity in the face of sustained traffic management imbalances. More info under EX1550543 and MO1550821 in the Microsoft 365 admin center, as well as https://t.co/7pjJdrpwOr if the admin center is not available to you.— Microsoft 365 Status (@MSFT365Status) November 13, 2026

Microsoft’s outage reports on November 12 reached 74 countries and territories in about an hour on Downdetector.Microsoft says its Exchange Online incident began at 16:17 UTC. Reports to Downdetector about Outlook began climbing at about 17:25 UTC, 12:25 in New York. By 18:25, reports about five Microsoft services combined reached 19,650 a minute, against <15 a minute on an average Thursday. Outlook reports alone peaked at more than 2,000 times their normal level.Reports did not stay in the Americas. They jumped tenfold in the UK at 17:43, in India at 23:21 local time and in New Zealand at 06:55 local time. Between 17:00 and 18:55 UTC, nearly 3 in 10 reports came from outside the US. We count a country here once its reports reach ten times normal and at least 20 in five minutes.Reports about Microsoft 365, Copilot, Teams and OneDrive each rose more than a hundredfold, and Azure about a hundredfold. Xbox, GitHub and LinkedIn, also Microsoft’s, rose far less.Microsoft said a portion of its infrastructure was experiencing elevated load across multiple regions. At 19:38 UTC, reports were still running at more than 11,000 a minute.— Downdetector (@downdetector) November 12, 2026

#BREAKING 🚨@Microsoft is still struggling to FIX its massive global outage, with major services continuing to experience disruptions.📌Airlines hit by Microsoft outage; flights cancelled. 📌Over 12 hours after the outage, people across the globe are still not able to access Microsoft Outlook & Teamshttps://t.co/XPAjERtwQN— ⚡️🌎 Sarwar 🌐⚡️ (@ferozwala) November 13, 2026