I have W2K3 server (latest patches) and Exchange 2003 with SP2. I have turned on the IMF functionality by checking the appropriate box under the advance settings on the default SMTP virtual server. I set the gateway blocking configuration SCL to 7 and the Junk E-mail SCL configuration to 5. If I look in the UCEArchive directory, I see that there are a bunch of emails that get filtered out, so I know that the IMF is working, but I have emails arriving in my inbox with a SCL of 5 or 6 that should be redirected to my Junk E-Mail folder. I have the same thing happening for every other user. I was wondering if anyone else has had this problem, or knows of a reason why these Junk E-Mails are not being redirected as they should?