Header and footer in multipart

[Dive-bruno]

Hi,

I have install mailman 2.1b6 on redhat 7.1.
My mailling list is in french and when I received mail
from the list with theBat, the header and the footer is
in multipart (like at the end).
I would like the bady and the footer was in the same
message.
Can you tell me if it's a bug or a configuration problem ?
And how I can resolve it ?

Thank's for your help.

Bruno

Example :
....
From: Bruno Demeilliez <email address hidden>
X-Mailer: The Bat! (v1.62 Christmas Edition)
Organization: Aquanaute.com
X-Priority: 3 (Normal)
Message-ID: <email address hidden>
To: <email address hidden>
MIME-Version: 1.0
Subject: Test
X-BeenThere: <email address hidden>
X-Mailman-Version: 2.1b6
Precedence: list
Reply-To: Bruno Demeilliez <email address hidden>,
        <email address hidden>
List-Id: <test2.aquanaute.com>
List-Help:
<mailto:<email address hidden>?subject=help>
List-Post: <mailto:<email address hidden>>
List-Subscribe:
<http://www.aquanaute.com/mailman/listinfo/test2>,

<mailto:<email address hidden>?subject=subscribe>
List-Archive: <http://www.aquanaute.com/pipermail/test2>
List-Unsubscribe:
<http://www.aquanaute.com/mailman/listinfo/test2>,

<mailto:<email address hidden>?subject=unsubscribe>
Content-Type: multipart/mixed;
boundary="===============2617006012765839=="
Sender: <email address hidden>
Errors-To: <email address hidden>

--===============2617006012765839==
Content-Transfer-Encoding: 8bit
content-type: text/plain

Bonjour test2,

Amicalement,

Bruno
---
Pour l'équipe d'Aquanaute.com
http://www.aquanaute.com
SARL de presse Aquanaute.com
8 rue Duployé
38100 Grenoble
France
Tél et Fax : [phone]

--===============2617006012765839==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

_______________________________________________
Liste de discussion Test2
Liste hébergée et administrée gratuitement par
Aquanaute.com
Présentation de la liste, Abonnement / Désabonnement :
http://www.aquanaute.com/mailman/listinfo/test2
Archives de la liste :
http://aquanaute.com/listes/Test2/

--===============2617006012765839==--

[http://sourceforge.net/tracker/index.php?func=detail&aid=657443&group_id=103&atid=100103]

[Barry Warsaw (barry)]

This happens when the charset or content-type of the footer
is not compatible with the charset or content-type of the
message. In those cases, the footer cannot be appended, so
it's added as an attachment. However, this functionality
has been improved in newer versions of Mailman so you should
upgrade to 2.1.5 and see if the problem still exists.