X-Amavis-Alert: BAD HEADER Improper use of control character

[fulltilt]

I have migrated from sarge to etch and using PHP5 with amavis.
Some Mailer did not work properly with amavis, with the breaks \r\n.
How can i fix that?

Code:

Return-Path: <www-data@mail.xxx.de>
Delivered-To: bad-header-quarantine
X-Envelope-From: <www-data@mail.xxxx.de>
X-Envelope-To: <fred@xxxxx.com>
X-Quarantine-ID: <1lZLF86kIxvd>
X-Amavis-Alert: BAD HEADER Improper use of control character (char 0D hex):
        Reply-To: online@xxx.de\r\n
Received: from abcd.xxxx.de ([127.0.0.1])
        by localhost (abcd.xxxx.de [127.0.0.1]) (amavisd-new, port 10024)
        with ESMTP id 1lZLF86kIxvd for <fred@xxxx.com>;
        Mon,  8 Oct 2007 07:11:40 +0200 (CEST)
Received: by abcd.xxxx.de (Postfix, from userid 33)
        id C89C6E10FAB; Mon,  8 Oct 2007 07:11:40 +0200 (CEST)
To: fred@xxxx.com
Subject: x.x.x.  xxxxxxxx Registration
Reply-To: online@xxx.de
MIME-Version: 1.0
Content-type: text/plain; charset=UTF-8
Message-Id: <2007100805xxx.C89C6E10FAB@abcd.xxxx.de>
Date: Mon,  8 Oct 2007 07:11:40 +0200 (CEST)
From: www-data@mail.xxxx.de (www-data)