Microsoft Blames Past Infrastructure Work for Global Outlook Outage

Microsoft announced full recovery of a large-scale system outage affecting multiple services, including Outlook, on November 14. The disruption, which impacted email transmission globally, including Japan, was attributed to past infrastructure expansion work. The company ruled out cyberattacks or AI-related causes as factors. Microsoft issued a deep apology to customers for the confusion caused by the failure, which lasted over a full day before services were fully restored. The outage originated from deficiencies in previous equipment enhancement operations, according to reports. The incident disrupted email sending and receiving for users worldwide, marking a significant service interruption for the tech giant.