Installing Intelligent Message Filter with Exchange 2003 SP2
Before the arrival of Exchange 2003 SP2, IMF used to be a stand-alone tool downloadable from Microsoft. Although one can still download and install it separately (here, if you insist), IMF is now an integral part of Exchange Service Pack 2 (SP2).
As usual, one should read the Microsoft Exchange Server 2003 Service Pack 2 Release Notes before installing SP2. This is more important in regards to the installation and configuration of the Intelligent Message Filter in SP2.
