List suddenly stopped adding footers.
I have a user-managed list that suddenly stopped adding the footer to messages. It appears that after the time footers stopped being added, I started seeing links for scrubbed attachments to messages.
What setting(s) could be causing this?
Kevin T. Likes writes:
I have a user-managed list that suddenly stopped adding the footer to messages. It appears that after the time footers stopped being added, I started seeing links for scrubbed attachments to messages.
The footer is set in the "Non-digest Settings" screen. It's theoretically possible that scrubbing attachments could interfere with adding the footer, or perhaps for some reason it is being added outside of the MIME structure and your mail client doesn't display it (this is proper behavior for the client, but given the complexity of MIME I am reluctant to call it a bug in Mailman). If your client has a "show original" function to show the message without any formatting, you can check for this condition by using "show original" and scrolling to the bottom.
Scrubbing is configured in the "Content Filtering" screen. You can scrub by MIME type or by filename extension. There is a standard list of things to scrub (.com, .bat, .exe, ...) because of the high probability that such attachments are malicious
Check for changes in those settings.
What does the user-manager say? If the user-manager isn't being helpful, I would hesitate to trust them with list management in the first place. YMMV, of course.
Steve
The footer looks fine in the settings screen. I know I said it suddenly stopped showing up, and it looked that way from the first half dozen messages I looked at, but now it looks like some messages are getting it and most aren't.
I've been checking the messages in the list archive, so user client shouldn't be an issue. I just checked the most recent messages, and one had a footer but the previous dozen or so didn't. I'm no longer sure this has anything do do with the scrubbing. I've seen some message without footers or a scrubbed attachment, and found one with a footer and a scrubbed attachment.
filter_content is set to no, collapse_alternatives is yes. According to the manager the only change they made was a few months ago when we turned on "Mung from" due to DKIM issues. But this problem didn't crop up until recently, from what I can tell in the archives.
On Tue, Sep 2, 2014 at 9:45 PM, Stephen J. Turnbull stephen@xemacs.org wrote:
Kevin T. Likes writes:
I have a user-managed list that suddenly stopped adding the footer to messages. It appears that after the time footers stopped being added, I started seeing links for scrubbed attachments to messages.
The footer is set in the "Non-digest Settings" screen. It's theoretically possible that scrubbing attachments could interfere with adding the footer, or perhaps for some reason it is being added outside of the MIME structure and your mail client doesn't display it (this is proper behavior for the client, but given the complexity of MIME I am reluctant to call it a bug in Mailman). If your client has a "show original" function to show the message without any formatting, you can check for this condition by using "show original" and scrolling to the bottom.
Scrubbing is configured in the "Content Filtering" screen. You can scrub by MIME type or by filename extension. There is a standard list of things to scrub (.com, .bat, .exe, ...) because of the high probability that such attachments are malicious
Check for changes in those settings.
What does the user-manager say? If the user-manager isn't being helpful, I would hesitate to trust them with list management in the first place. YMMV, of course.
Steve
On 09/03/2014 05:36 AM, Kevin T. Likes wrote:
I've been checking the messages in the list archive, so user client shouldn't be an issue.
msg_header and msg_footer are not added to messages in the archive. If they appear there, it's only in 'replies' that quote them from the original. msg_header and msg_footer are only added to messages delivered to individual message subscribers.
-- Mark Sapiro mark@msapiro.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
I was seeing them in replies (quoted over), but I also see them in messages that don't appear to be replies. That's probably different quoting confusing me. This is good to know. I guess this is to save space in the archives?
On Wed, Sep 3, 2014 at 1:17 PM, Mark Sapiro mark@msapiro.net wrote:
On 09/03/2014 05:36 AM, Kevin T. Likes wrote:
I've been checking the messages in the list archive, so user client shouldn't be an issue.
msg_header and msg_footer are not added to messages in the archive. If they appear there, it's only in 'replies' that quote them from the original. msg_header and msg_footer are only added to messages delivered to individual message subscribers.
-- Mark Sapiro mark@msapiro.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/kevin.likes%40gmail.co...
Kevin T. Likes writes:
I've been checking the messages in the list archive,
Mark addressed this already, but let me add that copying of messages to the archive happens before adding the header and footer material.
I believe that aside from space saving (both disk and visual space on the user's display), a primary motivation is to avoid publishing links to personal pages in the archive.
filter_content is set to no,
I don't think this is consistent with scrubbed attachments. Mark?
collapse_alternatives is yes. According to the manager the only change they made was a few months ago when we turned on "Mung from" due to DKIM issues. But this problem didn't crop up until recently, from what I can tell in the archives.
I don't think you can tell from the web archives. You need somebody who keeps all the posts in their MUA to take a look. N.B. GMail is somewhat broken for this purpose -- it *always* discards the user's own posts when received via the list, giving precedence to the copy in the Sent folder, so the user's own posts will not show any edits or additions that the list makes.
Yeah, the archives led me astray. I asked some more questions, and found out the issue is one user using Outlook, which seems to be a known issue. That'll teach me to jump to a conclusion.
On Wednesday, September 3, 2014, Stephen J. Turnbull stephen@xemacs.org wrote:
Kevin T. Likes writes:
I've been checking the messages in the list archive,
Mark addressed this already, but let me add that copying of messages to the archive happens before adding the header and footer material.
I believe that aside from space saving (both disk and visual space on the user's display), a primary motivation is to avoid publishing links to personal pages in the archive.
filter_content is set to no,
I don't think this is consistent with scrubbed attachments. Mark?
collapse_alternatives is yes. According to the manager the only change they made was a few months ago when we turned on "Mung from" due to DKIM issues. But this problem didn't crop up until recently, from what I can tell in the archives.
I don't think you can tell from the web archives. You need somebody who keeps all the posts in their MUA to take a look. N.B. GMail is somewhat broken for this purpose -- it *always* discards the user's own posts when received via the list, giving precedence to the copy in the Sent folder, so the user's own posts will not show any edits or additions that the list makes.
On 09/03/2014 04:08 PM, Stephen J. Turnbull wrote:
Kevin T. Likes writes:
filter_content is set to no,
I don't think this is consistent with scrubbed attachments. Mark?
Content filtering and scrubbing are more or less independent.
First content filtering is applied to remove any MIME parts with undesired Content-Type: or filename extensions.
After this is done, the scrubber will attempt to flatten the message into a single text/plain message. MIME parts which remain after content filtering and which cannot be converted to plain text in a known character set are stored aside and replaced by links to the stored parts. Normally this is done only for the archive and the plain text format digest and not for individual messages or messages in the MIME format digest, but if Non-digest options -> scrub_nondigest is Yes, scrubbing is done for all messages.
-- Mark Sapiro mark@msapiro.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
On Tue, 02 Sep 2014 19:31:40 +0100, Kevin T. Likes kevin.likes@gmail.com
wrote:
I have a user-managed list that suddenly stopped adding the footer to messages. It appears that after the time footers stopped being added, I started seeing links for scrubbed attachments to messages.
What setting(s) could be causing this?
This may be a wild guess too far ...
Is this an announcement list with only one regular poster? If it has
numerous posters, forget this idea but if there is just one dominant
poster, maybe that poster has switched from posting plain text to posting
HTML. IIRC that will tend to hide the footers in the MIME structure and
the posted HTML could be the scrubbed attachments you are finding.
... and if that was a guess too far, apologies for clogging up the list.
= Malcolm.
-- Malcolm Austen malcolm.austen@weald.org.uk GENUKI trustee genuki@weald.org.uk Pedigree User Group chairman@pugweb.org.uk Oxfordshire FHS webmaster@ofhs.org.uk FFHS Communications Officer communications@ffhs.org.uk
participants (4)
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Kevin T. Likes -
Malcolm Austen -
Mark Sapiro -
Stephen J. Turnbull