I want to secure a postfix site with rbls, no spamassassin at this moment. (I use SpamAssassin on other sites, and no RBLs at SMTP time, so I'm not very experienced with this. SA has may RBL's, sure, but what to use to kill them when seen?)
I can google, but many of those advices tell to use obsolete and dumb RBL's, so... I want a good coverage, but not too many false positives. What do you use to block a spammer at SMTP connect? -- Lay on, MacDuff, and curs'd be him who first cries, "Hold, enough!". -- Shakespeare