I tried to setup USPS integration in 11.04, and it looks like USPS no longer supports "RateV2", which is what OFBiz currently supports. I checked trunk, and get the same error:
2012-06-01 13:39:44,860 (TP-Processor8) [ ServiceDispatcher.java:543:ERROR] Error in Service [uspsRateInquire]: Error sending request for USPS Domestic Rate Calculation service: API Disabled: RateV2. Has anyone upgraded UspsServices.java to support at least V4? This is what USPS says: USPS Announces: "Rate and RateV2 versions of the domestic Rate Calculator will be retired on March 31, 2012, requiring all integrators to migrate to the latest versions"
