[Mimedefang] RBL and DNS lookups

[Daniel Aquino]

> I've never heard of dnsmasq

It's a light weight dhcp/dns server...

> but DNSBL queries are regular DNS
> queries, so any normal caching DNS server/proxy should cache
> DNSBL lookups (we use pdnsd).

I never heard of pdnsd ;p

> It is. That's the whole point of using DNS for BLs. You make use
> of an existing, proven and scalable, distributed caching database
> infrastructure.

Well none the less if your server already runs a local dns cache for
regular dns queries.... Then you need a "separate" dns daemon that is
specially configured for dnbl queries...  Am I correct?