> Yes, we all get it, but RBLs are not a good solution, either. > Leaving the power of blocking your server on the hands of other people > is a Bad Thing (tm). It depends ; for example bl.spamcop.net and relays.ordb.org are two good complementary block lists, and are refreshed in realtime Most spam I receive is blocked by these two dns ; and false positives are extremely rare.