I use ADP and PitneyBowes software for our reminder program as well as all other Marketing Mailers. We average about .21-.22 cents per letter for our mail cost. Returned letters are minimal and the savings in postage pays for the PitneyBowes Software and DI350 Stuffer/Folder.
It's a bit of a pain to go through but it save us a lot of labor and a lot of money. Feel free to email me if you want additional information.
[This message has been edited by trigger (edited 05-15-2007).]