Dear Lazyweb, I’m after recommendations.
I have a machine which handles mail for a number of domains and I get a lot of spam. Mail is filtered using spamassassin after being delivered, which is fine as far as it goes, but it means that all this mail actually gets delivered and processed and so on.
I want to reject likely-spam at SMTP time, so that I never need know about it (and, also, if it *is* a legitimate message, the sender will know it has been spam-trapped). I have a Sarge (or Etch) Debian box available to do this and it runs Exim 4. What do you use, how is it setup?