David wrote:
>I want to allow pics but nothing else. No html emails, exes, zips etc
>I got the list to block everthing but I am not seeing how to allow just
>pics to go thru.
In content filtering, one way to to this is
filter_content -> yes
filter_mime_types -> empty
pass_mime_types -> multipart/mixed
multipart/alternative
message/rfc822
text/plain
image
This allows only text/plain parts and image parts from multipart/mixed
messages and parts, multipart/alternative messages and parts and
attached message parts.
If you also want to allow PGP signed messages, add
multipart/signed
application/pgp-signature
to the above pass_mime_types list.
If you want to restrict image types to say GIF, JPEG and PNG only,
remove image from the list and add
image/gif
image/jpeg
image/png
Of course, some evil doer can always send a zip or exe to your list
with MIME type image/jpeg. In Mailman 2.1.6, you can protect against
this to some extent with header_filter_rules (in Privacy
options...->Spam filters as described in the FAQ at
http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq03.051.htp.
This doesn't work in 2.1.5 and earlier because they don't search
sub-part headers for header_filter_rules.
--
Mark Sapiro <[EMAIL PROTECTED]> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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