Core Insights - Microsoft is experiencing an outage affecting enterprise customers' access to various cloud services, including email, files, and meetings [1][2] - The outage is attributed to a malfunction in a portion of the service infrastructure located in North America, which is not processing traffic as expected [1] - Microsoft is actively working to restore the affected infrastructure to ensure recovery [1] Service Impact - The outage specifically impacts Exchange Online email service, file searching in SharePoint Online and OneDrive, and functionalities in Teams such as creating chats, meetings, and adding members [1] - Administrators are also unable to access Microsoft Purview and Defender XDR security dashboards, as well as their admin centers [2]

Core Viewpoint - Microsoft is currently addressing technical issues affecting its Outlook application, which is a critical component of the Microsoft 365 productivity software suite [1][2]. Group 1: Technical Issues - Users are experiencing a '451 4.3.2 temporary server issue' error message when trying to send or receive emails through Outlook [3]. - The outage has also impacted the OneDrive cloud file storage and SharePoint Online collaboration services, causing slow searches or complete failures [3]. Group 2: Service Disruption - The incident occurred during U.S. business hours, prompting discussions on social media as various institutions, including schools and government entities, faced disruptions [2]. - Microsoft identified that a portion of its service infrastructure in North America was not managing traffic properly and is actively working to resolve the issue [4].