Superhuman incident

Degraded Send operations for Microsoft users

Minor Resolved View vendor source →

Superhuman experienced a minor incident on April 16, 2025 affecting Email sending, lasting 6d 3h. The incident has been resolved; the full update timeline is below.

Started
Apr 16, 2025, 03:14 PM UTC
Resolved
Apr 22, 2025, 06:29 PM UTC
Duration
6d 3h
Detected by Pingoru
Apr 16, 2025, 03:14 PM UTC

Affected components

Email sending

Update timeline

  1. investigating Apr 16, 2025, 03:14 PM UTC

    We're investigating an issue with sending messages with attachments for Microsoft users.

  2. monitoring Apr 16, 2025, 09:51 PM UTC

    We're seeing a 401 Unauthorized error affecting a small subset of Microsoft users when sending messages with attachments. After a day of investigation, we've determined the impact is limited and are moving to monitoring for the time being. We'll continue to watch the issue closely to ensure it does not escalate.

  3. resolved Apr 22, 2025, 06:29 PM UTC

    Microsoft has deployed a fix for the authorization issues that were causing send failures for some Outlook users when sending with large attachments. The issue was resolved late last week, and sending functionality has since returned to normal. We appreciate your patience while this was being addressed.