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

[Brett Delmage]

Stephen and Christian,

Thank you for your most helpful replies.

I did some additional testing. I remembered (after) that I had a copy of 
the original message as received by Mailman, as I was copying the Mailman 
posting address mail to another mbox for debugging. Also, the user who had 
HTML-only mail was very helpful in working with me to send more test 
messages.

And it is working!

The stupid thing is that I never changed anything.

I did realize that the user had originally copied me on his list message - 
and "nodupes" caused my Mailman copy to not be sent.

With the tester and me being the only list members at the moment it 
therefore appeared that Mailman ate the message because I (and he) were 
the only recipients. (A previously active list is being moved to a new 
domain and is going online on Monday and I was debugging the new config.)

Duh. Blame my oversight on having a terrible summer cold this past week.

In the process though, I did realize that no list admins were subscribed 
to the site mailman list. Whoops.

You both posted useful info to the list which will be in the archives for 
others and me to refer to for similar problems int he future. (I've kept 
my own copy of the MM list messages since 2000 for easy local 
searchability.)

At the end of all my work I was happy to see my local SpamAssassin give 
our list messages a -1.1 score.

Again, thank you for your help and many contributions to this list.

Brett