[Mailman-Users] non-subscriber managed to post to a subscriber only list

Steve Lindemann steve at marmot.org
Mon Jan 26 21:40:36 CET 2009

Had something strange occur early Saturday morning.  A non-subscriber 
managed to successfully post to two member only lists (and, of course, 
it was spam).

The bogus sender (thelevisstoreonline at levis.rsys1.com) is not a member 
of these member only lists and is not in the accept_these_nonmembers 
filter.  Other non-member posts are being caught and sent to moderation. 
  Is there something else that I should be looking at?

I checked the logs and the sender sent to 5 of our hosted lists.  They 
were caught (per the vette log) by 3 of those lists as a non-member, but 
posted successfully to the other 2 lists (per smtp and post logs).

I've checked the docs and faqs and haven't found a reference for 
something like this.  I've checked all the logs and the configs (via the 
web interface) on the two lists that posted allowed the post.  I can't 
find any reason for it and have to wonder if I'm checking everything. 
I've looked thru everything that makes sense and much that doesn't.  If 
I had hair I'd be pulling it out!
Steve Lindemann                         __
Network Administrator                  //\\  ASCII Ribbon Campaign
Marmot Library Network, Inc.           \\//  against HTML/RTF email,
http://www.marmot.org                  //\\  vCards & M$ attachments
+1.970.242.3331 x116

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