[Mimedefang] Sudden problem noted with File::Scan 1.43 and PD F attachments

[Cormack, Ken]

David F. Skoll wrote:

> The REAL solution is: NEVER use Quoted-Printable encoding for PDF files.
> Always use Base64.  If you can somehow convince your AIX boxes to do
> this, you should be OK.


I just asked the developer about the quoted-printable encoding... He sent a
test PDF to his Exchange mailbox, then showed me the following header from
within Outlook...

	::snip::
	From: ::snip::
	Subject: ::snip::
	To: ::snip::
	Mime-Version: 1.0
	Content-Type: multipart/mixed;
boundary="----_=_libsmtp_Nextpart__000_000007DA.3B95D19_1"
	Content-Transfer-Encoding: 7bit
	X-Scanned-By: MIMEDefang 2.53 on ::snip::
 
	This is a MIME multipart message. Your mail reader isn't MIME
capable.
 
	You might not be able to read parts or all of this message.
 
 
 
	------_=_libsmtp_Nextpart__000_000007DA.3B95D19_1
	Content-Type: text/plain;name="FAX
6712110543-153006-10-19-2005.pdf";
	 charset="us-ascii"
	Content-Transfer-Encoding: 7bit
 
	------_=_libsmtp_Nextpart__000_000007DA.3B95D19_1
	Content-Type:
application/pdf;name="6712110543-153006-10-19-2005.pdf"
	Content-Transfer-Encoding: base64
 
	------_=_libsmtp_Nextpart__000_000007DA.3B95D19_1--

To us, it looks like he's already using Base64 for the PDF.  In the actual
emails, a few lines of text are placed in the email, that the receiving
systems parse, and then the attachment follows those few lines of text.

Ken

-----Original Message-----
From: David F. Skoll [mailto:dfs at roaringpenguin.com] 
Sent: Wednesday, October 19, 2005 2:23 PM
To: mimedefang at lists.roaringpenguin.com
Subject: Re: [Mimedefang] Sudden problem noted with File::Scan 1.43 and PDF
attachments


Cormack, Ken wrote:

[ Something corrupting some PDF files ]

There is a horrible, ugly hack in MIME::Tools that attempts to deal
with PDF files encoded using Quoted-Printable encoding.  I suspect that
something is triggering MIMEDefang to rebuild the message, and the horrible
ugly hack isn't working properly.

The REAL solution is: NEVER use Quoted-Printable encoding for PDF files.
Always use Base64.  If you can somehow convince your AIX boxes to do
this, you should be OK.

Regards,

David.
_______________________________________________
Visit http://www.mimedefang.org and http://www.roaringpenguin.com
MIMEDefang mailing list
MIMEDefang at lists.roaringpenguin.com
http://lists.roaringpenguin.com/mailman/listinfo/mimedefang