ISTANBUL, Nov 13 (Bernama-Anadolu) — Microsoft said on Thursday that a disruption affecting its Microsoft 365 services across several regions was caused by the sudden failure of multiple servers, rather than an increase in user traffic.

According to Anadolu Agency, Microsoft 365 Status said in its latest update on X that the server failures had placed additional pressure on the remaining operational infrastructure.

“We have identified that the increased load was not due to an increase in traffic, but rather because a number of servers suddenly became unavailable,” the company said, adding that efforts were underway to safely restore the affected servers.

The outage disrupted access to Exchange Online mailboxes and potentially other Microsoft 365 services, with users reporting connectivity issues across various access methods.

Microsoft said it had temporarily halted all system deployments, redirected traffic away from the affected infrastructure and restarted malfunctioning servers as part of its recovery efforts.

Service monitoring website Downdetector recorded more than 97,000 reports of Outlook issues, over 38,000 complaints involving Microsoft 365 and approximately 4,500 reports concerning Teams in the United States.

However, the actual number of affected users may differ, as Downdetector’s figures are based on reports submitted by users.

Microsoft advised users to monitor its service status website and the Microsoft 365 admin centre for further updates on the incident, which was identified under reference codes EX1550543 and MO1550821.

— BERNAMA-ANADOLU