[Mailman-Users] Attachments Possible?

Brad Knowles brad.knowles at skynet.be
Thu Jul 31 01:27:51 CEST 2003

At 5:31 PM -0500 2003/07/30, schuetzen wrote:

>  what i want to delete is stuff which is ATTACHED to the body of the 
>message, a
>  scond part of the message. it could be multipart or a part of the body.

	Attached in what way?  If it's MIME, you can't embed an image in 
the body of a message bodypart.  You have to have a separate 
bodypart, which can then be referred to within the message.

	For example, if a message is PGP signed, the "Content-Type:" 
header might be "multipart/signed", "multipart/mixed", or there might 
be no MIME headers or formatting at all, and the message is in plain 
ASCII with internal formatting that PGP understands.  If the message 
is in HTML, the value for this header might be 

	We need specifics.

>                                                                          it is
>  more likely a movie, a picture, a sound bite, etc.  all of those should be
>  stripped.  it certainly happens in Y!G and we should be able to do it here.

	The same is certainly possible with mailman.

>  again, the final test is - nothing which is not Plain Text, US-ASCII
>  gets into the elist.  That is the final test.  Anything which does
>  not meet that "filter" should be stripped, deleted or better -
>  rejected to the sender with a fault message.

	That's simple.  Reject all messages that have any MIME formatting 

	If you can't (or won't) do that, then you need to be more 
specific about precisely which MIME content-types will be permitted.

Brad Knowles, <brad.knowles at skynet.be>

"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
     -Benjamin Franklin, Historical Review of Pennsylvania.

GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E-(---) W+++(--) N+
!w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++)
tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)

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