Configuring Exchange Intelligent Message Filter, IMF version 2
This article was most helpful for configuring the Exchange Intelligent Message Filter. It also describes how to enable the Custom Weighting Feature. The key steps are:
- regsvr32 C:\Program Files\Exchsrvr\bin\MSCFV2\MSExchange.UceContentFilter.dll
· Use Notepad to create/edit (in Unicode format) the file: C:\Program Files\Exchsrvr\bin\MSCFV2\MSExchange.UceContentFilter.xml
Caution: The MSDN & TechNet documentation hasn’t been updated to indicate what version it refers to. Specifically, the interface for enabling IMF features for a SMTP virtual server was changed between version 1 and version 2. This page, for example, describes the IMF V1 interface.
The filter drops blocked e-mail into the C:\Program Files\Exchsrvr\Mailroot\vsi 1\UceArchive folder. Double clicking on a file with a .EML extension opens it with Outlook Express. Delete the real spam and drop the real mail into the pickup folder.
If you do end up mistakenly installing IMF V1 on top of Exchange SP2, it will appear to succeed with no complaints but will probably not work. You can remove it on the Add/Remove Programs control panel. Then reinstall Exchange SP2. Configuration changes appear to be preserved through all this.