Problem with mail headers?

[Scott Silva]

on 4/12/2011 2:30 PM Juan Pablo Lorier spake the following:
> Hi there,
> 
> Since yesterday I'm having problems with some mails, they show without
> body even when the body is there.
> If I reply the mail, it adds the body as plain text just fine (most
> cases) and this happens in every client; outlook, evolution,
> thunderbird, etc. so this is happening between the mailscanner relay and
> the mail server.
> Is it possible that a mail can get truncated or does smtp check the mail
> to see if it was received as it should?
> 
> Here are some headers of broken and fine mails:
> 
> This is supposed to be a mail with some text and some image footers:
> 
> X-montecarlotv-mailscanner-information: Please contact the ISP for more
> information
> X-montecarlotv-mailscanner-id: p3CE2jWT003955
> X-montecarlotv-mailscanner: Found to be clean
> X-montecarlotv-mailscanner-from:
> prvs=1076bd8e21=javier.galli at wunderman.com
> X-spam-status: No
> Mime-version: 1.0
> Content-type: text/plain; charset="US-ASCII"
> Content-transfer-encoding: quoted-printable
> 
> and the body shows:
> 
> 64
> Content-ID: <image003.jpg at 01CBF901.19E1C0E0>
> Content-Description: image003.jpg
> Content-Location: image003.jpg
> 
> THE IMAGE IN ASCII TEXT
> 
> ------_=_NextPart_002_01CBF91A.46552F1C
> Content-Type: image/jpeg;
>         name="image004.jpg"
> Content-Transfer-Encoding: base64
> Content-ID: <image004.jpg at 01CBF901.19E1C0E0>
> Content-Description: image004.jpg
> Content-Location: image004.jpg
> 
> OTHER IMAGE AS TEXT
> 
> ------_=_NextPart_002_01CBF91A.46552F1C
> Content-Type: image/jpeg;
>         name="image005.jpg"
> Content-Transfer-Encoding: base64
> Content-ID: <image005.jpg at 01CBF901.19E1C0E0>
> Content-Description: image005.jpg
> Content-Location: image005.jpg
> 
> AND SO ON
> 
> 
> 
> This is other case where I could get the mail to be resend and so have
> the right and broken version:
> 
> header of "corrupted mail" with partial size
> 
> X-montecarlotv-mailscanner-information: Please contact the ISP for more
> information
> X-montecarlotv-mailscanner-id: p3CJ076N004399
> X-montecarlotv-mailscanner: Found to be clean
> X-montecarlotv-mailscanner-from: xxx at xxxx.com.uy
> X-spam-status: No
> Mime-version: 1.0
> Content-type: text/plain; charset="US-ASCII"
> Content-transfer-encoding: quoted-printable
> 
> 
> header of resend of the same mail:
> 
> 
> X-mailer: Microsoft Office Outlook 11
> Thread-index: Acv5Q+cmvPqAxx9iRSOj/g5DNh5m6wAAqelw
> X-mimeole: Produced By Microsoft MimeOLE V6.00.2900.5579
> X-montecarlotv-mailscanner-information: Please contact the ISP for more
> information
> X-montecarlotv-mailscanner-id: p3CJJc8o007158
> X-montecarlotv-mailscanner: Found to be clean
> X-montecarlotv-mailscanner-from: xxx at xxxx.com.uy
> X-spam-status: No
> Mime-version: 1.0
> Content-type: multipart/mixed;
> boundary="----=_NextPart_000_0064_01CBF92D.7C0DB9F0"
> 
> 
> Thanks in advance

First thing... Are all the bad messages encoded the same way?
  IE... quoted-printable vs base 64.
Are there any other common things, like all sent from the same type of client?