Hi,
I need some help with unexplained behaviour changes to the "Content
Filtering" action of a Mailman list, version 2.1.9. The Mailman list
is Xxxxxx, and the unexplained behaviour was first noticed with e-mail
postings on/after Sept.6/07.
The unwelcome changes are that since Sept.6/07, the Content Filtering
configuration is "not" stripping any e-mail message attachments; even
though "multipart" and "image" content are listed. Multipart/mixed, and
multipart/alternative were stripped from e-mail postings before Sept.6/07.
Since Sept.6/07, such offending e-mails are now being Content
filtered/rejected to the listowner. No multipart, or image attachments
are now being removed from the e-mail posting attempts?
Xxxxxx list Content Filtering configuration:
****
****
Should Mailman filter the content of list traffic according to the
settings below?
(Edit filter_content)
[ ] No [X] Yes
Remove message attachments that have a matching content type.
(Details for filter_mime_types)
image
multipart ("trial addition of:
multipart/mixed
multipart/alternative
image/gif
image/jpg
resulted in the same multipart rejection of posting".)
Remove message attachments that don't have a matching content type.
Leave this field blank to skip this filter test.
(Details for pass_mime_types)
[Blank] ("trial addition of:
multipart
text/plain
resulted in the same multipart rejection of posting".)
Also, ("trial addition of:
text/plain
resulted in the same multipart rejection of posting".)
Remove message attachments that have a matching filename extension.
(Edit filter_filename_extensions)
doc
pdf
exe
bat
cmd
com
pif
ppt
scr
vbs
cpl
dat Also, ("trial removal of:
vcf gif
gif jpg
jpg resulted in the same multipart rejection of posting".)
Remove message attachments that don't have a matching filename
extension. Leave this field blank to skip this filter test.
(Edit pass_filename_extensions)
[Blank]
Should Mailman collapse multipart/alternative to its first part content?
(Edit collapse_alternatives)
[ ] No [X] Yes
Should Mailman convert text/html parts to plain text?
This conversion happens after MIME attachments have been stripped.
(Edit convert_html_to_plaintext)
[ ] No [X] Yes
Action to take when a message matches the content filtering rules.
(Details for filter_action)
[ ] Discard [ ] Reject [X] Forward to List Owner [ ] Preserve
****
****
I wish to re-establish the past, correct content filtering of:
multipart/mixed
multipart/alternative
image/jpg
image/gif
winmail.dat
htm
html
Since Sept.06/07
There have been 73 postings.
There have been 35 multipart rejections/content filtering without
stripping.
There have been 36 text/plain postings that were accepted (normal).
There have been 02 "blank", no message body content postings slip
through.
Can the missing, listed stripping actions be restored to the Content
Filtering
configuration?
Help and advice appreciated.
Thank you,
Art
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