In the past I've used a combination of spamhaus combined RBL's and Spamassassin with Mailscanner as my spam recipe, but this stopped working very well for me well over a year ago. As many of the users of the couple small/personal mail servers I run are NOT technical people, and use POP to read their mail, 'training' spamassassin is difficult at best. Once upon a time, using the Rules Du Jour scripts from the SARES project worked pretty well, but that has been shut down, and really hasn't been functional in over a year.
I've just rebuilt a friends mail server with centos 5.2 (it was running FC3 or something before) and would like to setup them up with a decent anti-spam recipe that doesn't require extensive tinkering or training.
does anyone have a good recipe for this? Ideally I'd like something purely RPM based that doesn't require extensive configuration and tuning. I've never setup razor before, how well does that work if the mail users aren't in a position to feed it training data?