Microsoft Blames Network Upgrade for Global Outlook Outage
The tech firm said a capacity change triggered the disruption that halted email and court operations worldwide this week.
By Mia Bennett ·

Microsoft apologized on Friday for the global service outage that interrupted email and business tools for millions of users. The company stated the disruption began on Thursday and affected Outlook, AI tools, and various corporate platforms. Local businesses and government agencies in Davidson County experienced delays in communication and reporting during the downtime.
The outage originated from a technical issue within Microsoft's network infrastructure. The company explained that an earlier network capacity upgrade created a problem that surfaced after a recent network change. Microsoft confirmed the incident was not caused by a cyberattack or artificial intelligence agents.
The company took to social media on Friday to address the public directly. "We are deeply sorry for the disruption this incident has caused our customers and partners," Microsoft wrote. The statement emphasized the trust users place in the platform and the responsibility the team felt to resolve the issue quickly.
Restoration efforts began immediately after the fault was identified. Microsoft reported seeing broad recovery and stability across its services by Friday. The team worked to bring systems back online gradually, validating stability at each step to prevent further disruptions. This careful approach extended the timeline for full service restoration.
While the exact number of affected individuals was not disclosed, Microsoft noted it holds more than 450 million paid Microsoft 365 commercial subscriptions. The company said it has addressed the underlying network issue. Services continue to return to remaining customers and regions as the team monitors system performance.
The incident impacted police crime reporting and court operations in multiple locations. Businesses across the world lost access to Outlook emails during the peak of the outage. Microsoft stated it continues to restore service to the remaining affected areas.
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