$Id: FormMail.pl,v 2.17 2002/10/10 08:00:15 nickjc Exp $
I thought it was NMS Formmail but I haven't been able to find anything in the script that speciifes that. I did do a little more digging in a Readme file and it does say Copyright 2001 London Perl Mongers.
Hope that helps.
Thanks