Postal Partners

"You can actually make money from postage," he says. "We haven't gotten into that yet as much as I want to. But there's a fair amount of money to be made if you're allowed to do it."

Leonard cites mail clearinghouses as an example of an operation that mails in bulk for a profit.

"You give your customers a good deal, but you get a better deal because everything is CASS-certified," he says, referring to the post office's Coding Accuracy Support System that ensures every address in a mailing has a physical counterpart in reality.