As an independent agency, we can write up insurance for your RV, car, truck, trailer, and motorcycle using a variety of companies looking for the best price and terms. Vehicle Insurance & Warranties: Wholesale Warranties RV EXTENDED WARRANTIES Americas Mailbox is dedicated to serving the RV community. Whether it’s through our top-notch mail forwarding services and sought-after campground, or providing exclusive access to trusted partners in the industry, we put the RVer first.