Postmark experienced a major incident on June 11, 2026, lasting 1d 10h. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Jun 11, 2026, 09:25 PM UTC
We are investigating delays for bounce related Events, Webhooks, and Statistics.
- resolved Jun 11, 2026, 09:47 PM UTC
We've resolved the issue. Thank you for your patience.
- investigating Jun 12, 2026, 03:30 PM UTC
Additional bounce related event delays have been identified. We are deploying a fix to release the backlogged events.
- investigating Jun 12, 2026, 04:08 PM UTC
Backlogged bounce related events are continuing to process.
- resolved Jun 12, 2026, 06:36 PM UTC
All previously backlogged events have been processed. The issue occurred starting on June 11th at approximately 3:36am to June 12th 1:01pm CT (June 11th 08:36 – June 12th 18:01 UTC). Thank you for your patience. We will continue to improve our systems.