For all of you out there that run your own mailserver and have lost the battle to fight spam...I highly recommend Postini as the solution.  We run our our mail server from home so we have total control over everything (mailbox size, shared access, attachment size, # of accounts and email addresses, etc) but I have been losing the battle of spam fighting lately and just don't have the time to tweak and tune mail rules...Outlook does a pretty good job of catching what I missed but by the time outlook downloads the message it's already run to my phone which checks more often then outlook so I get the spam briefly then it's gone.  Well since I signed up for Postini yesterday I have received 0 spam's and Joni only had two false positives (which were spam in my book).  So if this sounds like you...for $12/year/account...you can't go wrong.

Steve