Priority mail international offers NO TRACKING. It is

来源: 于 2010-03-27 19:57:32 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

only a custom form, not Postal tracking.
You have to use Registered Mail or EMS. EMS is the most reliable and trackable. Over $300 EMS is recommended.