14 September, 2021 - Unable to Ship to AUS

Known Issue
Caused by an external app or service
We are aware of the issue, which is caused by an issue on USPS's side.

Effective September 3, 2021, the U.S. Postal Service has temporarily suspended First Class Package International Service delivery to Australia due to carrier issues related to the COVID-19 pandemic.
Priority Mail International and Priority Mail Express International delivery are not being impacted and mailpieces will continue to be delivered.

15 September 2021 Update: 
The USPS has temporarily suspended Priority Mail International shipments to Australia as of September 17, 2021. To avoid disruption, use GlobalPost Standard or Priority Mail Express International to ship your packages to Australia. Get more info on GlobalPost Standard

More information on the USPS Australia Suspension here

Click I'm experiencing this issue, and we'll make sure to keep you updated as we investigate this issue