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

Stamps.com Engineers have identified an issue that may temporarily affect some of our customers' ability to print postage and shipping labels. They're expecting a resolution for this soon.

For more information please refer to their status page here: https://status.stamps.com/

We are aware of and currently investigating reported issues related to label creation for Stamps.com services. We will provide updates as they are available and apologize for any inconvenience.