[Mimedefang] Altering mail attachment using Mime defang

[Steffen Kaiser]

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On Fri, 21 Dec 2007, vinita batra wrote:

> There is some policy and according to that if mail attachment contains
> ms word file , then i need to replace that ms word attchment with new
> ms word file.

> so can you please give me some piece of code that can replace the mail
> attachment(ms word file) with newer attachment(new ms word file).

MIMEDefang allows you to modify the on-wire message with Perl. Hence, 
unless somebody has the exact program already in his pocket, you can get 
hints or hire a programmer.

Hints:

a)
http://lists.roaringpenguin.com/pipermail/mimedefang/2005-March/026257.html
The idea here: in filter() the offending mail attachement is dropped from 
the mail with action_drop(). Later in filter_end() another mail 
attachement is appended to the message with action_add_part().

b)
There were questions like that in the past, the basic structure consists 
of MIMETools objects - http://search.cpan.org/~doneill/MIME-tools-5.425/ .
Do something along the lines of the action_replace_with_warning() function 
in mimedefang.pl

Bye,

- -- 
Steffen Kaiser
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