[Typo3] standard mailform: messed up mail headers

[Dominik Blystak]

Hi list,

after months having no problems sending mails through the standard mailform 
from various instances, suddendly the mails are messed up. Below you see an 
example of a plain text mail. At first it sets mime-version, content-type, 
charset and transfer encoding according to a plain mail but then we got 
another mime-version, content-type, charset and transfer-encoding which 
messes everything up (and I don't know where they come from):

> Return-Path: <apache at XXX.XX>
> X-Original-To: X at XXX.XX
> Delivered-To: XXX at XXX.XX
> Received: from XXX.XX (XXX.XX [XXX.XX.XXX.X])
> 	by XXX.XX (Postfix) with ESMTP id EBF1069000B
> 	for <XXX at XXX.XX>; Tue,  2 Aug 2005 14:43:47 +0200 (CEST)
> Received: by XXX.XX (Postfix, from userid X)
> 	id D557F6BC002; Tue,  2 Aug 2005 14:43:47 +0200 (CEST)
> To: XXX at XXX.XX
> Subject: Nachricht von Bush
> Message-ID: <<15edef23fa538e1ea0c21b71a43e0512 at domain.tld>>
> From: . <"."@XXX.XX>
> Reply-To: . <"."@XXX.XX>
> X-Mailer: PHP mailer
> X-Priority: 3
> Mime-Version: 1.0
> Content-Type: text/plain;
>   charset=iso-8859-1
> Content-Transfer-Encoding: quoted-printable
> Mime-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: BASE64
> Date: Tue,  2 Aug 2005 14:43:47 +0200 (CEST)
> X-UID: 39286
> X-Length: 1093
> Status: R
> X-Status: NC
> X-KMail-EncryptionState:  
> X-KMail-SignatureState:  
> X-KMail-MDN-Sent:  

TkFNRTogIC4NCkZJUk1BOiAgLg0KRU1BSUw6ICAuDQpURUw6ICAuDQpGQVg6ICAuDQpCRVRSRUZG
OiAgLg0KTUVTU0FHRTogIC4NCg0KCg==


What could be the problem here? 

Where lies the code of the form mail content element??


I can send mails from various typo instances and versions all with the same 
error. The software has not been upgraded on that server, so that should not 
cause the problem.


regards,
Dominik