Microsoft experienced a worldwide outage affecting multiple Microsoft 365 services, with Exchange Online access among the most notably affected, iTnews reported. The company first acknowledged the issues at 4.54am AEDT.
Microsoft traced the cause to a portion of infrastructure under elevated load across multiple regions, which it said was likely contributing to connectivity errors. A number of servers became unexpectedly unavailable, placing strain on the remaining infrastructure. Teams, SharePoint Online, Microsoft Copilot 365 and Microsoft Defender XDR were also listed as potentially impacted on Microsoft's status page.
The company attempted to shift traffic away from affected servers and redirect it to healthy infrastructure. Microsoft was testing a configuration change intended to address servers failing automated health checks and becoming unavailable, the company said. It said on X that it was pursuing all available pathways to reduce the impact of the outage.
Microsoft restarted all affected servers and was monitoring their health as they came back online. The company had not indicated which cloud region contained the impacted servers.
Australian enterprise users were likely encountering email that would not load and an error message stating something had gone wrong, with a prompt to refresh. Microsoft's status page was itself slow to load during the outage. The story was developing at time of reporting, with iTnews adding to it as further information became available.
Australian enterprise users of Microsoft 365 were likely unable to access Exchange Online email and may also have been affected across Teams, SharePoint Online, Microsoft Copilot 365 and Microsoft Defender XDR.
Official statements: Learn
Reporting: iTnews
Background: Yahoo Finance
Written by Pick & Scroll News from the reporting and documents linked above.
