in reply to Mail::Box::Mbox adds a strange boundary when read email

Hi all
I found the problem:
The missing "last" new line in email source: 
From test@gmail.com  Tue Nov 21 02:29:28 2006
Return-Path: test.gmail.com
Received: from test@gmail.com (gmail.com [172.27.220.34])
    for test@gmail.com; Tue, 21 Nov 2006 02:29:28 GMT
Message-Id: <200611210229.kAL2TS3D013057@gmail.com>
Received: from grpm_dom-MTA by gmail.com
    with Novell_GroupWise; Tue, 21 Nov 2006 02:29:28 +0000
Received: from localhost.localdomain (gmail.com [172.27.30.200])
    by gmail.com with ESMTP; Tue, 21 Nov 2006 02:29:01 +0000
Content-Transfer-Encoding: binary
Content-Type: multipart/related; boundary="_----------=_11640761411305
+30"
MIME-Version: 1.0
X-Mailer: MIME::Lite 3.01 (F2.72; T1.16; A1.67; B3.05; Q3.03)
Date: Tue, 21 Nov 2006 02:29:01 UT
From: test.team.email@gmail.com
To: test@gmail.com
Subject: Notification - This call has been assigned to you. (Task ID:1
+29244)

This is a multi-part message in MIME format.

--_----------=_1164076141130530
Content-Disposition: inline
Content-Length: 1668
Content-Transfer-Encoding: binary
Content-Type: text/html


                <body>
                    <table>
                    
                    </table>
                </body>

--_----------=_1164076141130530--

[download]
it has to be: 
From test@gmail.com  Tue Nov 21 02:29:28 2006
Return-Path: test.gmail.com
Received: from test@gmail.com (gmail.com [172.27.220.34])
    for test@gmail.com; Tue, 21 Nov 2006 02:29:28 GMT
Message-Id: <200611210229.kAL2TS3D013057@gmail.com>
Received: from grpm_dom-MTA by gmail.com
    with Novell_GroupWise; Tue, 21 Nov 2006 02:29:28 +0000
Received: from localhost.localdomain (gmail.com [172.27.30.200])
    by gmail.com with ESMTP; Tue, 21 Nov 2006 02:29:01 +0000
Content-Transfer-Encoding: binary
Content-Type: multipart/related; boundary="_----------=_11640761411305
+30"
MIME-Version: 1.0
X-Mailer: MIME::Lite 3.01 (F2.72; T1.16; A1.67; B3.05; Q3.03)
Date: Tue, 21 Nov 2006 02:29:01 UT
From: test.team.email@gmail.com
To: test@gmail.com
Subject: Notification - This call has been assigned to you. (Task ID:1
+29244)

This is a multi-part message in MIME format.

--_----------=_1164076141130530
Content-Disposition: inline
Content-Length: 1668
Content-Transfer-Encoding: binary
Content-Type: text/html


                <body>
                    <table>
                    
                    </table>
                </body>

--_----------=_1164076141130530--
<the important new line>

[download]
Thanks for all efforts to help me.

In Section Seekers of Perl Wisdom