Who does RBL checks - MailScanner or SpamAssassin?

[Dhawal Doshy]

Alex Neuman writes: 

>> None, zilch.. we do not tune SA at all (i compile rpms from the  stock 
>> tar.gz distro).. moreover we add tonnes of SARE rules to it.  If using a 
>> dedicated server for MySQL based Bayes is tuning, then  yes we do tuning. 
>> From that POV, we use djbdns' dnscache for the  local caching-nameserver, 
>> which helps Net::DNS tremendously. Also  thanks to the prolocation chaps, 
>> we rsync SURBL for local use.. 
>> 
> 
> Is using djbdns' dnscache better performance-wise than running Bind  in 
> caching mode? I know this probably sounds dumb but since Bind w/ caching 
> is installed by default on most rh-based linux distros I've  never 
> bothered to do djbdns...

i can't really say which one is better.. i seem to like dnscache's 
performance and can keep it on a leash (from a resource perspective, see the 
wiki entry). Another reason being that i come from a qmail shop and have 
always been comfortable with dnscache (never gave bind+caching_ns a chance 
except for authoritative nameservers). 

 - dhawal