Now this all works very nicely apart from every spam that gets tagged also generates a warning email from the server itself which is extremely annoying.
I'm actually being told that spamc returned fewer headers that it received but after much head scratching I just cannot figure out how to shut it up!
I'm running getmail from cron with:
getmail -q -d --rcfile X --rcfile Y &>/dev/null
fixing any setup mistakes I might have made would be ideal but for now I'd just like to stop the messages getting to my inbox