http://wiki.contribs.org/EmailRBL is there, and i DO understand the instructions, after all they are kinda copy/paste and i have a background on email server (came from Mdaemon, worked like a charm for me for like 5 years, but thats another story) so i know what to do and what not to do and what my mail server is going to do given a mail etc etc etc...but thats not common on nix-noobs like me (anyway noobs to this usually have a new server with new email accounts still not harvested by many spamers, if any at all), but i still think that there is needed a single command to activate it...or a easy to get 3kb contrib or something like that...
And for greylisting...there is only this
http://forums.contribs.org/index.php?topic=33662.0 and looks VERY outdated and even dangerous to try on 7.3...and i know what devs and some hardcore admins think but greylisting worked nicelly for me on the Mdaemon (i was just tired of windoze problems, unfortunatelly even if micro$oft releast a zillion security patches and whatever that OS is not good enough to be a server...i still use it on my everyday computer...but that is also another unrelated subject and story)
And dont take me wrongly, im happy with SME and im not going back at all, i was just trying to be a little more confortable with my setup, but is working for my daily spam storm just with SA and RBLs activated and manual BL...down from 200 spam daily on our oldest address to 5-10 spams daily...i mean, im already happy the way it is now, i just wanted to lower a bit more that number...