USPS makes the registration process very simple. Click this link:
www.uspsprioritymail.com/et_regcert.html
They keep moving the button, but somewhere on that page is a button that says “sign up.” Click it. Give them the information they need. You should receive via email a username and password, which you will need to enable the USPS module.
The next step is to install and configure the module. If you don’t want to do it yourself, just forward the email you receive from USPS to Blue Note and we’ll take care of it for you.