I feared that :-( The RBL program doesn't allow to configure forwarders. I have add (not replace) the "nameserver 127.0.0.1" to the resolv.conf file and now it works more or less. Postfix asks all the queries to the RBL program, and if they are not resolved, then the server asks queries to the other nameservers. This is not the best solution, but the Postfix program uses the RBLs program at least.
-----Mensaje original----- De: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] En nombre de Ralf Hildebrandt Enviado el: jueves, 18 de octubre de 2012 10:52 Para: postfix-users@postfix.org Asunto: Re: Postfix and RBL program in the same server * Arantza Serrano <aserr...@euskaltel.com>: > But I want that the postfix uses the external DNS servers for the relay > queries, to check mailfrom domain, etc.... > I would like the Postfix program to use the external DNS servers for all the > queries EXCEPT for the RBL queries. That's not possible. Configure the DNS on 127.0.0.1 to use itself for RBL queries and XXX.XXX.XXX.XXX & YYY.YYY.YYY.YYY as forwarder -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de