Users of RBL's

[Matt Kettler]

Chris Hammond wrote:
> I have been looking at caching RBL lookups.  I have found how to's on rsyncing a copy of the RBL to a local machine
> but I am wondering if it is possible to just cache the lookups and not have to rsync a copy to a local machine?

Yes.. just use any ordinary DNS server package to do that.. Configure it as a
resolver (or forwarding resolver, your choice) and set your MailScanner box to
use it as it's DNS server in resolv.conf.

DNS servers by design inherently cache answers to queries they've made.