Postmark experienced a major incident on May 25, 2026, lasting 1d 3h. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating May 26, 2026, 02:22 PM UTC
We are investigating an issue causing webhooks to be delayed.
- investigating May 26, 2026, 02:59 PM UTC
A fix has been deployed and webhooks have returned to their expected performance. Engineering is continuing to monitor.
- resolved May 26, 2026, 05:45 PM UTC
The issue has been resolved.