Hi all,
I'm trying to set my list so that it strips the S/MIME digital signature attachments that some mail software adds to every message (iOS 5 is a culprit here). However, no matter what I do, Mailman seems to see the message as not having content, such that it's forwarded to me, the list owner, rather than being sent on to the list. My content filtering settings are as follows:
filter_content: Yes filter_mime_types: application/pkcs7-signature pass_mime_types: multipart/mixed, multipart/alternative, text/plain filter_filename_extensions: exe, bat, cmd, com, pif, scr, vbs, cpl, p7s pass_filename_extensions: blank collapse_alternatives: Yes convert_html_to_plaintext: Yes filter_action: Forward to list owner
In particular, note the filter_mime_types and the last entry in filter_filename_extensions, which are what I've added to try to get rid of these attachments.
Any ideas what I might be doing wrong, or if I'm missing something that prevents Mailman from handling S/MIME attachments properly?
cheers... -Adam