Degraded Performance detected on status page
Affected: Overall
Postmark Outage History
Postmark is up right nowThere were 12 Postmark outages since February 11, 2026 totaling 89h 42m of downtime. Each is summarised below — incident details, duration, and resolution information.
SMTP Sending Delays in the European Union
Timeline · 3 updates
- investigating Apr 21, 2026, 10:10 PM UTC
Some customers sending from the European Union are experiencing delays in outbound message delivery. Affected messages may appear in a "Processing" state. We are actively investigating the issue and will provide an update shortly.
- investigating Apr 21, 2026, 11:30 PM UTC
The issue has been identified and a fix has been deployed. Previously delayed messages are now sending. We will continue to monitor until the backlog has fully cleared.
- resolved Apr 21, 2026, 11:40 PM UTC
Good news - this issue has been resolved and everything should be working normally now. We're continuing to monitor closely to make sure everything stays stable. Thank you so much for your patience while we worked through this.
Inbound & SMTP Delivery Delays (Network Connectivity Issues)
Timeline · 1 update
- resolved Apr 10, 2026, 05:15 PM UTC
**[UPDATE]** We determined that yesterday's network instability was caused by a widespread Google (Gmail) outage. You can find more information on Google’s Status Dashboard here: https://www.google.com/appsstatus/dashboard/incidents/224ozRqzW4sFBDK8hLnT We will share an additional update regarding our internal action items later today.
Sending Delays
Timeline · 1 update
- resolved Apr 09, 2026, 10:31 PM UTC
**[UPDATE]** On **April 2nd** starting at **~07:00pm UTC**, Postmark experienced an incident that resulted in delayed message delivery and webhook notifications for some customers. The issue was caused by an infrastructure configuration change that disrupted internal mail routing. While messages were safely queued in a "Processing" state, they were not delivered until the routing configuration was restored. Service was restored on **April 3rd at ~4:20am UTC** and the backlog of queued messages began sending immediately. **No data was lost during this event.** We have since implemented additional monitoring on our internal routing and surrounding sending services to ensure our teams are alerted to processing bottlenecks immediately. We sincerely apologize for the delay and will continue to improve.
Latency and Timeouts - Web App, API for Message Data
Timeline · 1 update
- resolved Mar 28, 2026, 03:36 AM UTC
We've resolved the incident. Thanks for your patience.
Billing & Subscription Management Issues
Timeline · 1 update
- resolved Mar 26, 2026, 06:17 PM UTC
The issue has been resolved.
Webhook Delays
Timeline · 1 update
- resolved Mar 25, 2026, 02:56 AM UTC
The issue has been resolved! Thank you for patience.
Bounce Webhooks & Statistics Delays
Timeline · 1 update
- resolved Mar 08, 2026, 01:59 PM UTC
Resolved! Thank you for your patience.
Sandbox Sending Issues
Timeline · 1 update
- resolved Mar 04, 2026, 06:25 PM UTC
We've now resolved the incident. Thanks for your patience.
Click Tracking Delays
Timeline · 1 update
- resolved Feb 27, 2026, 08:32 PM UTC
The incident has been resolved. Engineering will continue to monitor through the weekend. Long term system improvements and mitigation processes will continue to be a high priority effort. We appreciate and thank you for your patience.
Stats Delays
Timeline · 1 update
- resolved Feb 23, 2026, 10:17 PM UTC
We've now resolved the incident. Thanks for your patience.
Webhook Delivery Delays
Timeline · 1 update
- resolved Feb 12, 2026, 03:30 PM UTC
We've resolved the issue. Thanks for your patience.
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