ShipRush incident

USPS returns "Service Unavailable" error

Critical Resolved View vendor source →

ShipRush experienced a critical incident on July 23, 2026 affecting Carrier Functionality, lasting 4h 45m. The incident has been resolved; the full update timeline is below.

Started
Jul 23, 2026, 03:01 PM UTC
Resolved
Jul 23, 2026, 07:46 PM UTC
Duration
4h 45m
Detected by Pingoru
Jul 23, 2026, 03:01 PM UTC

Affected components

Carrier Functionality

Update timeline

  1. identified Jul 23, 2026, 03:01 PM UTC

    Many users are seeing errors when attempting to rate and ship USPS services, typically the error is "Service Unavailable". This appears to be due to an outage with the online postage portal ShipRush uses to work with USPS. They are aware of the break and working to resolve it now, we will post updates here once they are available.

  2. resolved Jul 23, 2026, 07:46 PM UTC

    USPS Functionality should now be fully restored, though there may be slowness in processing rates and shipping throughout the afternoon.