Microsoft mail header format

Microsoft Mail is a Mail User Agent program included with all versions of Windows Vista.

Message-ID: <8A1F11BBD7D7413EAE9E2792741BC6A4@hostname>
From: "Username" <username@sendinghost.com>
To: "Username" <username@receivinghost.com>
Subject: header test
Date: Fri, 3 Aug 2007 18:22:27 +0200
MIME-Version: 1.0
Content-Type: multipart/alternative;
    boundary="----=_NextPart_000_000B_01C7D5FB.3ED1C170"
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Windows Mail 6.0.6000.16386
X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16386