May have to take a look at it. Does it work with ActiveSync and Hotmail?
However, no matter how good the software is, it won't prevent the messages from going to him, it can only clean them up so he doesn't get them in his inbox.
Another good suggestion, have two e-mail accounts. I have my school (my MTU mail) and my 'other' (free Hotmail) accounts. My school address only gets out on a need-to-know basis. Only family and school people have that one. THe Hotmail account gets used for all the signing up for websites stuff. I only a bit of junk, and a lot of useful stuff, and try to keep it cleared out. I'm still cautious in giving it out, but it is there so if I do get spammed, it isn't clogging up my important account.