I got a few (supposedly) generic thank you letters from 2 or 3 programs, though I think that even this form of communication is illegal. I don't really think we should be getting programs in trouble (or should we), so maybe you should keep the program name to yourself.
To be honest, I was pleasantly surprised during the interiview process in that many (if not all) of the programs were very adamant about keeping to the rules of the match. Some even said not to send any thank you letters or contact them in any way (MEEI and Columbia). This was very reassuring to me and other applicants.