More than the same mailer, it's the same instance !!!! (Outlook 2003), see the screenshot in attachment !!!
I give you the header which cointains the header (It's the same Mantis server). Sometime it's UTF8 or empty, qutoe-printabled or not, it seems to be random !!!
The header with uncorrect encoding is :
=================================
Microsoft Mail Internet Headers Version 2.0
Received: from ext1.sword-group.com ([10.1.3.26]) by sword-group.com with Microsoft SMTPSVC(6.0.3790.3959);
Thu, 31 Jan 2008 09:49:13 +0100
Date: Thu, 31 Jan 2008 09:49:13 +0100
Return-Path:
bug@lllllll.com
To:
jbug@lllllll.com
From: "
bug@lllllll.com" <
bug@lllllll.com>
Subject: =??Q?[SWL/PAH_-_Module_ELABORATION_0012679]:_Saisie_des_types_de_v=C3=A9h?=
=??Q?icules?=
Message-ID: <
49b00670aab89f774125eb5aec7b4769@ext1.sword-group.com>
X-Priority:
X-Mailer: PHPMailer [version 1.73]
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=""
X-OriginalArrivalTime: 31 Jan 2008 08:49:13.0659 (UTC) FILETIME=[278318B0:01C863E6]
The correct is :
============
Microsoft Mail Internet Headers Version 2.0
Received: from ext1.sword-group.com ([10.1.3.26]) by sword-group.com with Microsoft SMTPSVC(6.0.3790.3959);
Thu, 31 Jan 2008 09:49:10 +0100
Date: Thu, 31 Jan 2008 09:49:10 +0100
Return-Path:
bug@lllllll.com
To:
jbug@lllllll.com
From: "
bug@lllllll.com" <
bug@lllllll.com>
Subject: [SWL/P2-MAO 0012542]: Correspondance Duree entre Article-Gamme et Process_Pesee
Message-ID: <
35142c74c8cdd3c686e9e2a536bf6a67@ext1.sword-group.com>
X-Priority: 3
X-Mailer: PHPMailer [version 1.73]
keywords: [SWL/P2-MAO] Gestion des articles
In-Reply-To: <038b2cd862b9992a072821d4e5b63913>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="utf-8"
X-OriginalArrivalTime: 31 Jan 2008 08:49:10.0628 (UTC) FILETIME=[25B49A40:01C863E6]