The company in the Wikipedia article went out of business nearly 200 years ago, so I don't think the legal situation is necessarily the same (backed up by the a

The company in the Wikipedia article went out of business nearly 200 years ago, so I don't think the legal situation is necessarily the same (backed up by the anecdotal fact that I can send a letter via Fedex). The Wikipedia article also doesn't mention anything about how the government apparently has exclusive access to MY mailbox, which is a big surprise to me.