Milter-greylist

Hi,

as I understand there is no addr regex matching implemented right now. A 
workaround could be to use urlcheck to call an external web script to do 
the dns check and return properties depending on the trustworthiness 
score which milter-greylist can handle then:

----
urlcheck "WL_DNSWL" "https://yourdomain/dnswl.php?revip=%j" 5 getprop
dnsrbl "WL_SPAMHAUS" swl.spamhaus.org 127.0.2.0/24

racl continue rset $wl_score=0
racl continue rset $wl_dnswl_trustscore="-1"

racl continue urlcheck "WL_DNSWL" $wl_dnswl_trustscore == 3 set 
$wl_score+=1
racl continue dnsrbl "WL_SPAMHAUS" set $wl_score+=1

racl "WL_DNSWL" whitelist $wl_score >= 1
----

These rules whitelist a sending host which is know by swl.spamhaus.org 
or has a "high" score (= 3) on list.dnswl.org. [1] A basic php script 
for urlcheck is attached.

Any other ideas?

Ciao
Marcus

[1] https://www.dnswl.org/?page_id=15