In case you have not heard yet, there is a major exploit for Send Mail that allows a user to simply send a specially crafted email and gain root access to a server. This is very bad news. Read my post in the news section here:
http://www.betaone.net/forums/index....T&f=57&t=21795
I point this out here, because I assume that many people here are admins in some degree in a professional sense and this is a very serious issue. There are no scripts yet for script kiddies to take advantage of the exploit, but there IS a 0 day available I hear somewhere.