Once mail comes into your server, it gets handed off to the local mailer for processing. In most cases this would be procmail. To know how to handle the mail procmail uses "recipes". These recipes can be in either the user's .forward file in their home directory or in the more global procmail.rc. I know I have answered this question many moons ago but for the life of me, I can't remember the recipe. If you do a websearch for procmail, there are many sites out there that have samples that you can convert to your needs. Sorry for getting old on you. I just don't remember things like I used to.