Am 08.07.2011 13:30, schrieb Zólyomi Szabolcs: > Dear all, > > I am a newbie here and in postfix too. After searching the web and browsing > some forums, I still haven't got a solution for a problem I struggle with. > If you have the time, please help me. > > Our corporate mail server (mail.ourcompany.hu) is operated by an external > provider. I am trying to set up a postfix relay server in front of it with > the following components: Linux CentOS 5.5 with actual patches + postfix > 2.3.3 + cyrus SASL 2.1.22 > The goal is to enable some internal systems sending mails without > authenticating themselves at mail.ourcompany.hu
> Jul 6 14:53:16 ourcompanydmz postfix/smtp[27517]: > > mail.ourcompany.hu[xx.xxx.xxx.xx]: HELO ufsz.ourcompany.hu Why do you send HELO? Fix that: You need to send EHLO if you want an AUTH offering.