> They're not so much "false" positives as they are simple blocks of
> domains which also send legitimate mail -- that's the nature of the
> beast. Very few spam relays are used _only_ as spam relays.
>
I think you mean the RSS. The RSS is for relays while the RBL is for more
serious offenders, so to speak.
> If you want a better chance of not blocking mail you care about,
> perhaps start with the DUL (dialup list). It only lists the IP
> addresses which ISPs have voluntarily submitted as belonging to dialup
> lines, and which therefore shouldn't be sending mail directly anyways.
>
I'd say go with all 3 of them (RBL, DUL and RSS) and throw in the tarpit
patch too but maybe I'm a bit harsh ;)
Lars Hansson
.