Milter-greylist

BERTRAND Jo\ufffdl wrote:
> 	I have tried to debug... See my code below :

<snip>
> 	It comes from dnsrbl.c. When I use the so-obtained greylist-milter, I 
> receive in the log :
> 
> Nov 13 22:55:46 rayleigh milter-greylist: DNSRBL: -1 
> (248.28.217.196.dnsbl.sorbs.net, 1, \ufffdt\ufffd\ufffdt\ufffd, 65536)
> 
> that indicates an error. But on the server where runs milter-greylist, I 
> can launch :
> dig QUERY 248.28.217.196.dnsbl.sorbs.net
> and this request works ! What is the difference between a dig request 
> and the request sent by milter-greylist ?

Check your /etc/resolv.conf. Are there any dead nameservers in it?

Test each and every nameserver entry running:

dig @<ip address from resolv.conf> QUERY 248.28.217.196.dnsbl.sorbs.net