Hello, I have an Ubuntu 10.04 Server with postfix installed. several of our web servers deliver outgoing mail to this server They do this without authentication allowed by the mynetworks = option.
This works. The server is setup to use our mail server as relay host. This works with authentication. However our new Mailserversystem denies relaying for authenticated Users because postfix appends "AUTH=<>" at the end of the "FROM MAIL" Line. The server of course authenticates with one account and sends mails for a lot of other domains. Here is an example. Sep 1 13:33:42 +0200 16 mail-02 SMTP-IN:000786CD: << MAIL FROM:<foo...@foobar.com> SIZE=3055 AUTH=<> This is how postfix sends the "MAIL FROM" line. Sep 1 15:12:30 +0200 16 mail-02 SMTP-IN:00086A89: << MAIL FROM:<foo...@foobar.com> SIZE=1127 This is how an exchange sends it. This exchange authenticates also with one account and sends for 3 or 4 other Domains. The IP-Addresses of both Servers are allowed to relay Mails for several Domains. But if I nationally request authentication for them the exchange works fine, but the postfix does not. So how do I get rid of the "AUTH=<>" that postfix sends? Thanks in advance for any tips or hints. Dominik
