I'm running a Zentyal (based in Ubuntu) server, which comes with an already configured postfix server (based in few settings) using LDAP as user's database.
We are using that server to send messages to mailing lists. Most of the mailing lists looks like: [email protected] -> [email protected], [email protected], [email protected], [email protected], [email protected] The mailing lists work fine if we use an internal account (example: [email protected]) to send mails. The problem is that if someone replies from an external account (example: [email protected]) mails to non-local accounts are being rejected by the server, with the error: Sep 5 12:01:31 mail.example.net amavis[20518]: (20518-01) Open relay? Nonlocal recips but not originating: [email protected], [email protected] Sep 5 12:01:34 mail.example.net postfix/smtpd[23371]: NOQUEUE: reject: RCPT from localhost.localdomain[127.0.0.1]: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual mailbox table; from=< [email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> It seems to me that somewhere the server is forgetting that the email was sent to: "[email protected]" and its trying to send the mails directly to their destinations. Could someone tell me which settings may be producing this effect? Please find the output of "postconf" (changed real domain), and the content of "amavis.conf" and "master.cf" in these links: http://pastebin.com/Vd5AmrUj http://pastebin.com/CNtetDhX http://pastebin.com/6g13gJwM Thank you in advance.
