San Ramon City Email Services Disrupted by Global Microsoft Outage

A global Microsoft outage disrupted the city of San Ramon's email services on Thursday, prompting officials to offer alternative contact methods for residents. The city announced the issue on Facebook at 2:24 p.m., directing service requests to an online form or phone line. Downdetector.com showed 16,417 user-reported issues with Microsoft 365 by 2:45 p.m., down from a peak of 47,106 at 10:13 a.m. Microsoft acknowledged widespread connectivity problems with Exchange Online, stating servers failed automated health checks and became unavailable, straining remaining infrastructure. Engineers were restarting servers and redistributing traffic, but no restoration timetable was given. Other Tri-Valley municipalities had not publicly reported similar disruptions as of Thursday afternoon. The outage affected inbox access, email sending and receiving, and connections to other Microsoft applications, according to the Associated Press.