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I have an issue with postfix.

If I set up an autorepsonder (I use a postgresql db, so I insert into alias table; of course this domain is listed into postfix's transport file) this will work only for local domains.

If I try to send mail from external domains, I receive back Relay access denied;
As last tentative, if I send in a "conventional way" mail to same address that is "denied" with autorespond operation, I'm able to send it without any problem.

Any idea?

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up vote 1 down vote accepted

Problem was into postfix's configuration file: $mynetworks does not contain server ip (only localhost: and, so, message was rejected. By adding my server ip address, all works like a charm.

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