in addition to SURBL, I have my own urirbl. Now I see advertized hosts like Lcm.Vs.topguidance.com, Scoj.Cs.topguidance.com and so on. Obviously, they use a wildcard record (for example, spamassassin.vs.topguidance.com resolves). OK, now I have a wildcard record for topguidance.com, and it works as ex�ected. Question: Do the "official" blacklists (spamhaus, surbl) take care of this trick?
From what I understand they only list the domain+tld and the client side only queries that.
ie: for both xyz.example.com and abc.example.com, SA queries example.com.multi.surbl.org
