[Mailman-Users] Mailman eats this message. Why?

Wed Jul 31 17:13:27 EDT 2019

I've been having trouble with one subscriber whose content was always 
stripped.

After changing a Content filtering flag and discovering that lynx was not 
installed, my tests of my own multipart html + text, and html-only 
messages indicated I had finally had Mailman correctly configured, or so 
it seemed. I got content in both cases.

But a test message from this user appears to have been eaten by MM. 
Postfix shows delivery to the MM list alias and that's where it ends. MM 
logs nothing for this message in any log and it is not posted.

Using Mailman version: 2.1.29

I have included the Content filtering section from bin/config_list and a 
stripped-down version of the message that went AWOL with content and 
headers that are of potential interest.

I'd welcome any suggestions or requests for more info or next debugging 
steps as may be appropriate. Thank you!

Brett

p.s. forget asking this user to send multipart including text. Some users 
are just incapable of that. But if I have to inform him that his 
HTML-only messages as sent will never get through MM, that's ok.

lost message:

Date: Wed, 31 Jul 2019 15:14:23 -0400 (EDT)
...
Message-ID: <566705347.6949993.1564600463102.JavaMail.open-xchange at mtlgui02>
Subject: Re: Please help us test the new freelance email list server
MIME-Version: 1.0
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 7bit
X-Mailer: Open-Xchange Mailer v7.6.1-Rev29
X-Originating-Client: open-xchange-appsuite

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head>
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

  </head><body>

   <p>Hi Brett:<br /> Would be great to participate in the discussions on the list.</p>
   <p>thanks</p>
   <blockquote type="cite">
    <p>---------- Original Message ---------- ...</p>
   </blockquote>
   <p>></p>

</body></html>

---------------

excerpt of config_list -o:

filter_content = 1

filter_mime_types = ''

pass_mime_types = """multipart/mixed
multipart/alternative
multipart message/rfc822
text/plain
text/html"""

filter_filename_extensions = """exe
bat
cmd
com
pif
scr
vbs
cpl
pdf
zip
doc
rtf
xls
vcf"""

pass_filename_extensions = ''

collapse_alternatives = True

convert_html_to_plaintext = True

filter_action = 3