Greenhouse incident

Emails to Outlook addresses failing to deliver

Resolved after 16 hours 49 minutes, affecting Silo 1 and Silo 2 and 1 more, on January 22, 2026.

identified Jan 22, 2026, 08:25 PM UTC

https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect

Started
Jan 22, 2026, 08:24 PM UTC
Resolved
Jan 23, 2026, 01:14 PM UTC
Duration
16h 49m
Detected by Pingoru
Jan 22, 2026, 08:24 PM UTC

Affected components

Silo 1Silo 2Silo 3Silo 4Silo 5Silo 6Silo 7Silo 8Silo 9Silo 101

Update timeline

  1. investigating Jan 22, 2026, 08:24 PM UTC

    We are currently investigating this issue.

  2. investigating Jan 22, 2026, 08:24 PM UTC

    We are continuing to investigate this issue.

  3. identified Jan 22, 2026, 08:25 PM UTC

    https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect

  4. resolved Jan 23, 2026, 01:14 PM UTC

    This incident has been resolved.

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