[Mailman-Users] [discuss] configuration of the maillist server from 1net.org

[Stephen J. Turnbull]

willi uebelherr writes:

 > now i think, it is clear. The feature "duplicate suppression" is a fix 
 > mechanism. I will wait for the answers of the people from the 
 > mailman-users list, what the say about. But in Gmail with a user 
 > configuration never i can resolve the problem.

That's right.  GMail considers this a feature, and has consistently
refused to even provide an option to receive copies of own mail.  You
may consider it embarrassing for GMail, but GMail clearly doesn't
think it's a problem.

If you don't like this feature, you will have to use a different mail
service from GMail, or live with it.  You may be able to work around
it by fiddling with the subscription address as Richard suggests, but
I bet it doesn't work (these are different names for the same mailbox).

 > Gmail follows the RFCs and treats the Message-ID as globally unique for 
 > a particular version of the message.  According to RFC5322, changing the 
 > Message-ID is the correct way to identify a new revision of the message. 

This is absolutely correct.

 > In other words, if you consider the message sent from the mailing list 
 > to be a different message, change the Message-ID.

This is also correct.  But only list admins really care about the
difference between a direct copy and the copy distributed by Mailman,
so it's a bad idea for Mailman to change the Message-ID.  It probably
won't be supported, unless convincing evidence is presented that there
are cases where it won't confuse users and MUAs.