Stamps.com incident

Issues Generating Rates for Some Services Through Windows Clients

Stamps.com experienced a notice incident on September 22, 2026 affecting Stamps.com Software (Printing Postage Using our Windows Application), lasting 2h 39m. The incident has been resolved; the full update timeline is below.

Started: Sep 22, 2026, 08:29 PM UTC
Resolved: Sep 22, 2026, 11:09 PM UTC
Duration: 2h 39m
Detected by Pingoru: Sep 22, 2026, 08:29 PM UTC

Affected components

Stamps.com Software (Printing Postage Using our Windows Application)

Update timeline

investigating Sep 22, 2026, 08:29 PM UTC

Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to generate rates for Priority Mail and UPS services through our Windows Clients. The website is unaffected and should be used as a workaround for now. We are working to quickly resolve this issue and will provide an update when it is available. We apologize for the inconvenience.
resolved Sep 22, 2026, 11:09 PM UTC

Stamps.com Engineers have fixed the technical issue and all systems are functioning normally. Thank you for your patience.