[Mailman-Users] new to mime filters

[Brad Knowles]

At 3:53 PM -0700 2005-04-29, Jarrel Pertschuk wrote:

>  Hey there trying to learn how to filter attachments with a list of
>  extensions. I'd like to write a filter that will scan for all items
>  like .exe, .dll  and a long list of things of that sort and delete
>  them. Not sure how to do this. Can anyone help with this basic question?

	The problem is that these sorts of things could be presented in 
any number of ways, and may or may not correspond to given MIME 
bodypart types, etc....  You're better off selecting the things that 
you know to be safe and allowing them through and then rejecting or 
stripping everything else.

	That's easily done by going into the "Content Filtering" page of 
the web admin interface for your mailing list, turning on the radio 
button at the top of that page (with the description "Should Mailman 
filter the content of list traffic according  to the settings 
below?"), and then making sure that the first multi-line field is 
empty, and the second multi-line field has the MIME bodypart types 
you know to be safe.

-- 
Brad Knowles, <brad at stop.mail-abuse.org>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

   SAGE member since 1995.  See <http://www.sage.org/> for more info.