Milter-greylist

Benoit Branciard <benoit.branciard@...> wrote:

> - sender MX validity : the idea is to able to identify sender domains
> whose MX is "bad", ie points to at least one IP pertaining to an 
> IANA-reserved block : loopback, private use, multicast, broadcast, 
> testing, link-local, and so on (see http://www.faqs.org/rfcs/rfc3330.html).

Perhaps we could perform a lookup of the MX address against a DNSRBL,
and build a DNSRBL of IANA-reserved block? It would make updates a bit
easier.

The only problem is the case of domains with multiple MX, one of them
being bad. How should we handle that?

-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu@...