Microsoft 365 Outage Enters Day 2 as Search Failures Persist After Mail Recovery
Updated
Updated · Computerworld · Sep 1
Microsoft 365 Outage Enters Day 2 as Search Failures Persist After Mail Recovery
3 articles · Updated · Computerworld · Sep 1
Summary
Microsoft said the disruption stretched into a second day, with search still impaired across Exchange Online, SharePoint, OneDrive, Teams and Microsoft 365 Copilot despite broader email recovery.
11:55 a.m. UTC on Aug. 31 marked the first Exchange Online trouble reports, and by 3:08 p.m. Microsoft had logged a broader incident tied to a core authentication configuration used across multiple services.
2:39 a.m. UTC Tuesday brought only incremental search improvement in a sample of affected infrastructure as Microsoft kept restarting systems and reapplying authentication components.
Exchange Online mail flow has largely recovered, though some organizations may still need time to clear queued messages while Microsoft has not given an estimate for full restoration.
For enterprise customers, the prolonged outage continues to disrupt routine workflows by limiting access to search, files, calendars, presence data and Copilot prompts.