Postfix and procmail question

Hi fellow Susers, another itty bitty question from me. I'm running a postfix mailserver with procmail...all ticking nicely thank you :) However I'm a bit confused about procmail...I'd like the other linux machines to be able to recieve email into their local spools, i.e not the spool on the mailserver...is this a config issue for fetchmail or procmail on the local machine or a config issue on the server..and yes I know fetchmail does pop fetching... Is there a way to fetch mail - copies - on an imap server that dumps a copy on the local machine, and what program might do that? I realize maybe I'm being unclear but I'd be happy to answer questions if anyone has any. Anyway, hoping for a guiding hand. Thomas