Tech Keys incident

Microsoft Outlook Issues

Major Resolved View vendor source →

Tech Keys experienced a major incident on September 29, 2025, lasting 1d 21h. The incident has been resolved; the full update timeline is below.

Started
Sep 29, 2025, 04:04 PM UTC
Resolved
Oct 01, 2025, 01:18 PM UTC
Duration
1d 21h
Detected by Pingoru
Sep 29, 2025, 04:04 PM UTC

Update timeline

  1. resolved Oct 01, 2025, 01:18 PM UTC

    From Microsoft: The deployment completed and we confirmed through telemetry that impact was remediated. This includes but is not limited Outlook Classic, Outlook (New), Outlook on the Web, Outlook Mobile, Exchange.