[Wylug-help] mail server problems

[Roger Beaumont]

I'm trying to move my mail-server from a cHaos box onto my new CentOS 
server (file serving via both nfs and samba and web-serving went across 
without too much pain).

The old system uses, I believe, fetchmail, postfix and dovecot.

1. I made sure that all 3 of those were installed on the new server.
2. I copied the contents of /home/roger/mail/ from the old box to the 
new one, then reconfigured thunderbird (on a third machine) to look at 
192.168.1.10 for its IMAP mail, instead of at 192.168.1.1 - the IP for 
the new server and got access to the new version.
3. I copied the configuration files (/root/.fetchmailrc 
/etc/postfix/main.cf /etc /postfix/master.cf and /etc/dovecot.conf) from 
the old box to the new box
4. dovecot complained about the configuration file and stopped, so I 
re-instated its previous default version, and started dovecot again - 
and once more the third machine had access to the new copy.

However, if I send a test message to myself, it always ends up in 
/var/spool/mail/root not in /home/roger/mail/

I've searched for the relevant stuff until I'm nearly blind, but cannot 
recognise anything useful.

fetchmail correctly reports (fetchmail -V -v -v) that it has identified 
my internet mail address as equivalent to the local user roger - and 
that it is operating in single drop mode.

Looking at /var/spool/mail/root shows the messages I tried to send 
interspersed with delivery failure messages like:
-------------------------------------------------------------
 From MAILER-DAEMON at tower2.internal  Fri Oct  3 17:06:22 2008
Return-Path: <MAILER-DAEMON at tower2.internal>
Received: from localhost (localhost)
        by tower2.internal (8.13.8/8.13.8) id m93G6MFl021285;
        Fri, 3 Oct 2008 17:06:22 +0100
Date: Fri, 3 Oct 2008 17:06:22 +0100
From: Mail Delivery Subsystem <MAILER-DAEMON at tower2.internal>
Message-Id: <200810031606.m93G6MFl021285 at tower2.internal>
To: postmaster at tower2.internal
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
        boundary="m93G6MFl021285.1223049982/tower2.internal"
Subject: Postmaster notify: see transcript for details
Auto-Submitted: auto-generated (postmaster-notification)

This is a MIME-encapsulated message

--m93G6MFl021285.1223049982/tower2.internal

The original message was received at Fri, 3 Oct 2008 17:06:22 +0100
from localhost
with id m93G6MFk021285

   ----- The following addresses had permanent fatal errors -----
<roger at roger-beaumont.co.uk>
    (reason: 553-mail rejected because your IP is in DUL. See)

   ----- Transcript of session follows -----
... while talking to cluster3.eu.messagelabs.com.:
 >>> DATA
<<< 553-mail rejected because your IP is in DUL. See
<<< 553 http://www.mail-abuse.com/enduserinfo.html
550 5.1.1 <roger at roger-beaumont.co.uk>... User unknown
<<< 503 RCPT first (#5.5.1)

--m93G6MFl021285.1223049982/tower2.internal
Content-Type: message/delivery-status

Reporting-MTA: dns; tower2.internal
Received-From-MTA: DNS; tower2.internal
Arrival-Date: Fri, 3 Oct 2008 17:06:22 +0100

Final-Recipient: RFC822; roger at roger-beaumont.co.uk
Action: failed
Status: 5.1.3
Remote-MTA: DNS; cluster3.eu.messagelabs.com
Diagnostic-Code: SMTP; 553-mail rejected because your IP is in DUL. See
Last-Attempt-Date: Fri, 3 Oct 2008 17:06:22 +0100

-----------------------------------------------------------
and that confuses the hell out of me, because Thunderbird is set to use 
the NTL smtp server, so why is tower2.internal sending anything external?

Help!

Roger

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