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Postmark Outage History

Every past Postmark outage tracked by IsDown, with detection times, duration, and resolution details.

There were 161 Postmark outages since September 2018. The 15 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor March 27, 2026

March 2026: Latency and Timeouts - Web App, API for Message Data

Detected Mar 27, 2026 3:37 PM EDT · Resolved Mar 27, 2026 6:45 PM EDT · Duration about 3 hours

Postmark experienced latency and timeout issues affecting customers' ability to access message data through both the web application and API querying endpoints. The engineering team investigated and resolved the service disruption. The incident lasted approximately 3.1 hours with minor impact classification.

Major March 26, 2026

March 2026: Billing & Subscription Management Issues

Detected Mar 26, 2026 3:01 AM EDT · Resolved Mar 26, 2026 2:21 PM EDT · Duration about 11 hours

Postmark experienced intermittent issues affecting subscription changes and billing management functionality for 11.3 hours. The engineering team identified the root cause of the problem and implemented a fix. This was classified as a major service incident impacting users' ability to manage their accounts and billing.