Milter-greylist

Tested with ldapcheck and urlcheck - both cases property returned from 
ldap is exactly the same as the word in racl configuration line, anyway 
ACL does not proceed to rbl lookup - it does only with simple, direct racl 
dnsrbl config. I set up rbldns response on my dns server, and the
answer (127.0.0.2 in this case) is returned properly, if asked.
Regards,
Piotr