On Thu, 7 Aug 1997 13:14:46 -0400 Gregory Decker said: >I am not sure exactly what you are looking to accomplish, but if we are >talking UNIX I have used PROCMAIL, a general purpose mail filter, to >select based on what is in a header. This is a code it yourself solution >but if you can do regular expressions it is very flexible. I'm a little familiar with procmail, but I thought it would only work for ALL lists on the server (I want this for just my list). If it can work on a list by list basis, I could write a procmail script called mylist.prefilter Now for the 64,000 purchasing unit question: How do I tell Listserv to call that procmail script? Looking at the section on the Exit= keyword in the Listowner's Manual, I somehow get the impression that it would need to be a regular script, and not procmail. Is this correct? Also, looking at the Site Manager's Manual, I didn't see an exit point that seemed appropriate for each message (they were for things like Subscribing, Unsubscribing, etc).