Are there any restrictions on shipping beverages non-alcoholic and alcoholic through the USPS? within the u.s as well as exporting and importing. I cant find information on any restrictions against what you can and cannot pack up and ship out of your post office...

I can tell you alcohol is not allowed. Neither are flammable liquids- nail polish, lighter fluid,etc.. If you do and your package should leak, you may have a police at your door with in minutes of the leak. Especailly if they don't know what it is!