[plug] Slackware Mail Server

Mon Dec 12 15:18:51 WST 2005

?
It's the woodsb02 at iinet.net.au through fetchmail that needs/needed fixing.

________________________________

From: plug-bounces at plug.org.au on behalf of Shannon Carver
Sent: Mon 12-Dec-05 3:08 PM
To: plug at plug.org.au
Subject: RE: [plug] Slackware Mail Server

Correct me if I?m wrong here, but if someone was to send an email to bwoods at kite.homeip.net, their mail server would lookup the MX of the homeip.net domain and send it there, which would then be returned, as I doubt theres a bwoods account on homeip.net.

To receive mail you need a working domain with an MX record pointing to your mail server.

Once again, if I?m wrong here, please correct me!

Shannon

________________________________

From: Craig Foster [mailto:plug-bounces at plug.org.au] On Behalf Of Craig Foster
Sent: Monday, 12 December 2005 2:42 PM
To: plug at plug.org.au
Subject: RE: [plug] Slackware Mail Server

________________________________

From: plug-bounces at plug.org.au on behalf of Benjamin Woods
Sent: Sat 10-Dec-05 12:10 PM
To: plug at plug.org.au
Subject: [plug] Slackware Mail Server

Hey guys,

I am trying to set up a slackware mail server.

I want it to be accessible via pop3, imap and a webmail interface.
This is just on my home server, and purely so that I can learn.
I want to use slackware, and i want to use sendmail.
I was thinking squirrelmail would be good for the webmail.

My server is on a dynamic ip, and uses dyndns with kite.homelinux.net.
This reaches my router, which then forwards it to my server.
I have set up the port forwarding fine.

I currently have sendmail appearing to work (i think... how do i test
exactly?), and it can receive emails if i email bwoods at
kite.homelinux.net.

I have an email with iinet: woodsb02 at iinet.net.au
I am downloading those emails with fetchmail which polls every 120
seconds and uses pop3. I had a problem that when it downloaded the
emails, it would sometimes send an email to the sender which looked like
this:

------------BEGIN EMAIL----------------
X-Account-Key: account2
Delivered-To: USERNAME1 at iinet.net.au
X-BrightmailFiltered: true
X-Brightmail-Tracker: AAAAAA==
Date: Thu, 8 Dec 2005 18:21:24 +0800
From: FETCHMAIL-DAEMON at kite.homelinux.net
To: USERNAME1 at iinet.net.au

[-- Attachment #1 --]
[-- Type: text/plain, Encoding: 7bit, Size: 0.1K --]

Some addresses were rejected by the MDA fetchmail forwards to.

[-- Attachment #2 --]
[-- Type: message/delivery-status, Encoding: 7bit, Size: 0.2K --]

Reporting-MTA: dns; localhost

Final-Recipient: rfc822; woodsb02 at localhost
Last-Attempt-Date: Thu, 08 Dec 2005 18:21:24 +0800 (WST)
Action: failed
Status: 5.1.1
Diagnostic-Code: 550 5.1.1 <woodsb02 at localhost>... User unknown

[-- Attachment #3 --]
[-- Type: text/rfc822-headers, Encoding: 7bit, Size: 0.9K --]

Delivered-To: USERNAME2 at iinet.net.au
Received: (qmail 17684 invoked from network); 18 Oct 2005 22:56:43 -0000
Received: from unknown (HELO mail-ihug.icp-qv1-irony1.iinet.net.au)
([203.59.1.195])
(envelope-sender <USERNAME1 at iinet.net.au>)
by mail.iinet.net.au (qmail-ldap-1.03) with SMTP
for <USERNAME2 at iinet.net.au>; 18 Oct 2005 22:56:43 -0000
Received: from 203-59-86-124.dyn.iinet.net.au (HELO [10.1.1.3])
([203.59.86.124])
by mail-ihug.icp-qv1-irony1.iinet.net.au with ESMTP; 19 Oct 2005
06:56:41 +0800
X-BrightmailFiltered: true
X-Brightmail-Tracker: AAAAAQAAA+o=
Message-ID: <43557DA5.1000800 at iinet.net.au>
Date: Wed, 19 Oct 2005 06:56:37 +0800
From: Phil Woods <USERNAME1 at iinet.net.au>
User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716)
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: USERNAME2 at iinet.net.au
Subject: RTKD Envelope
Content-Type: multipart/mixed;
boundary="------------040506030209030903020901"
---------------END EMAIL--------------

Where USERNAME1 is the username of the sender and USERNAME2 is my
username at iinet. I think this was because woodsb02 didnt exist on my
server... i use bwoods there instead! So i created an alias:

cat /etc/mail/aliases
<snip>
woodsb02:       bwoods

I think its working again. is this right?

Now, my next problem is that my imap server thinks the sent mail folder
should be ~/Sent. I want all mail folders in ~/mail/ (except INBOX which
should be in /var/spool/mail/bwoods)... is this an ok proposal? how can
i fix this?

Next, is it hard to set up squirrel mail?

Finally... i will look at clamav and spamassassin for virus and spam
filtering.... i have no idea about either yet... that could be fun!

I do realise that sendmail is a beast and would take a LONG time to
fully learn. The setup that comes with slackware seems ok by default...
so i am hoping i can just dodge learning about this beast...

Any suggestions are appreciated.

Thanks in advance

--
From: Benjamin Woods
woodsb02 at iinet.net.au
Registered Linux User #372573

_______________________________________________
PLUG discussion list: plug at plug.org.au
http://www.plug.org.au/mailman/listinfo/plug
Committee e-mail: committee at plug.linux.org.au 

----------------------------------------------------------------

The fetchmail man page (about 80% down) shows

"

 poll pop.provider.net proto pop3 port 3111
        user "jsmith" with pass "secret1" is "smith" here
        user jones with pass "secret2" is "jjones" here keep

 This associates the local username âEUR~smithâEUR(tm) with the pop.provider.net username âEUR~jsmithâEUR(tm) and the local username âEUR~jjonesâEUR(tm) with the pop.provider.net username âEUR~jonesâEUR(tm). Mail for âEUR~jonesâEUR(tm) is kept on the server after download."

(source: http://catb.org/~esr/fetchmail/fetchmail-man.html)

This is the suggested way of handling remote to local username changes...

Squirrelmail is quite easy if you follow the instructions - and there are plenty of them! See http://www.squirrelmail.org/wiki/InstallingSquirrelMail for pretty much every permutation of mail server available :)

Regarding AV and SA, I'm a fan of exim-sa and qmail-smtpd, as spamassassin and clamav can work before the whole email is downloaded, limiting the downloads of virus-infected emails, and both allow blocking of MIME attachments by blocking attachments whose first bytes match a windows or DOS executable header

Regards,

CraigF.

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