I have a Debian Etch server and ISPConfig installed. In one domain i have SimpleMachines instaled and some sended emails is returning with "Undelivered Mail Returned to Sender" and looks like this:
This is the mail system at host web1.dnsgeral.com.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<email@example.com>: host mx.ig.com.br[126.96.36.199] said: 550 See
(#5.7.1) (in reply to RCPT TO command)
Final-Recipient: rfc822; firstname.lastname@example.org
Remote-MTA: dns; mx.ig.com.br
Diagnostic-Code: smtp; 550 See
---------- Forwarded message ----------
From: "Fórum Ubuntu Linux - PT" <email@example.com>
Date: Mon, 09 Jul 2007 03:20:16 +0000
Subject: Lembrança de Registro
Você ainda não ativou a sua conta no fórum Fórum Ubuntu Linux - PT.
Por favor clique no endereço abaixo para ativar a sua conta:
A administração do Fórum Ubuntu Linux - PT.
The most strange thing is that server IP informed in return email is not the server IP: 188.8.131.52 should be 184.108.40.206! The IP 220.127.116.11 is used for NS2 DNS server.
How can i fix this ?