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CompaniesPostmarkIncidents

Postmark: Sending Delays

MinorStatus: resolvedStarted Resolved (10 h)1 updatestatus.postmarkapp.com (opens in new tab)

Timeline of updates

  1. resolved

    [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.

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Cite this

Status incident (vendor impact label: minor) posted by Postmark, started 2026-04-02 19:00 UTC, resolved after 10 h, 1 update(s).

Title
Sending Delays
Vendor
Postmark
Date
URL
https://rewindex.com/company/postmark/incidents/491225

Postmark profileRecent Postmark incidentsAll outages on April 2, 2026Postmark in April 2026MarkdownJSON