Courier experienced a minor incident on June 18, 2026 affecting API, lasting 1h 57m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Jun 18, 2026, 08:11 PM UTC
The team has identified a regression causing send requests to be stuck in a queued state. We have initiated a rollback to quickly resolve the issue. More updates to follow
- identified Jun 18, 2026, 08:35 PM UTC
The rollback deploy will land in about 30 minutes.
- identified Jun 18, 2026, 09:31 PM UTC
The team has identified that the most recent deployment was not the cause of the regression. The team is still working on identifying the root cause. Messages will not be dropped, and they will be processed once the fix is out.
- monitoring Jun 18, 2026, 09:53 PM UTC
Messages are being processed while our pipeline continues to process enqueued messages.
- resolved Jun 18, 2026, 10:09 PM UTC
Send pipeline has resolved and enqueued messages are now sending properly.