Check your Message-ID: headers. IIRC, Mailman doesn't change those when taking an incoming message and sending that back out.
In addition I happen to know from personal experience that Eudora has some very powerful duplicate suppression capabilities -- they are one of the few tools that helps keep me sane. -- Brad Knowles <[EMAIL PROTECTED]> Sent from my iPhone On Dec 17, 2007, at 2:52 AM, Allan Hansen <[EMAIL PROTECTED]> wrote: > At 2:34 +0900 12/17/07, Stephen J. Turnbull wrote: >> Allan Hansen writes: >> >>> That's interesting. >>> >>> I run Mailman 2.1.5 (Mac OS X 10.4) and have the 'problem' that >>> when someone posts to two lists at a time, I get only one message. I >>> actually do want to get both for archival purposes. If this is not a >>> function of Mailman 2.1.5, I wonder where the other message is >>> cut. :-) >> >> What do you mean by "get"? I "get" both messages in my system >> mailbox, but because I have duplicate suppression on in my MUA, I >> only >> "see" one. The MUA automatically skips any message with a Message-ID >> that it has already seen. > > More detail: > > One message from a subscriber's MUA goes to two lists in Mailman > because that person is addressing it using > > To: [EMAIL PROTECTED], [EMAIL PROTECTED] > > The subscriber (who is not I) is subscribed to both lis1 and list2 > (I verified this). > I'm also subscribed to both list1 and list2 (also verified). > > Mailman is the actual recipient of this message. However, being a > listserver, Mailman becomes the originator (literally) of two new > messages, one for the subscribers of list1 and another for the > subscribers of list2. It has to be two messages, because one message > has additional headers and a footer added for list1 and the other > has headers and a footer added for list2. In fact, Mailman even adds > the Sender: header with the list as the sender. > > I'm subscribed to both list1 and list2, so I'll expect to see two > different messages being picked up by my MUA. One message with > Sender: [EMAIL PROTECTED] and another with Sender: [EMAIL PROTECTED] > > This, in fact, is how it worked in a previous list server (ListStar) > that I used before Mailman. > > In Mailman I'm seeing only the message corresponding to list2. > > My MTA is Postfix and my MUA is Eudora (both running under Mac OS X > 10.4.11). > > I cannot imagine my MUA comparing the two messages and throwing one > out, as the message bodies are, in fact, different. Ditto for the > MDA and MTA. > > Allan > >> >> I would assume you've got a similar feature, perhaps not in your MUA >> but in the MDA or MTA. >> >>> >>> (No need for action from anyone - I was just mumbling aloud). >>> >>> Allan >>> >>> At 16:49 -0800 12/14/07, Mark Sapiro wrote: >>>> Gruver, Sandi wrote: >>>> >>>>> Does the 'no dupes' option mean that members will not receive a >>>>> messages >>>>> sent to more than one list to which they are subscribed? >>>> >>>> >>>> No. It only means that a member will not receive the post from >>>> the list >>>> if (s)he in specifically addressed in To: or Cc: of the post. >>>> >>>> If you have lists with duplicate members which are frequently cross >>>> posted, the new sibling lists 'exclude' feature in Mailman 2.1.10 >>>> can >>>> be used to avoid these duplicate messages. >>>> >>>> -- >>>> Mark Sapiro <[EMAIL PROTECTED]> The highway is for gamblers, >>>> San Francisco Bay Area, California better use your sense - B. >>>> Dylan >>> >>> -- >>> Allan Hansen >>> P.O Box 2423 >>> Cypress, CA 90630 >>> U.S.A. >>> [EMAIL PROTECTED] >>> +1-714-875-8870 >>> ------------------------------------------------------ >>> Mailman-Users mailing list >>> Mailman-Users@python.org >>> http://mail.python.org/mailman/listinfo/mailman-users >>> Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py >>> Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ >>> Unsubscribe: >>> http://mail.python.org/mailman/options/mailman-users/stephen%40xemacs.org >>> >>> Security Policy: >>> http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq01.027.htp > > -- > Allan Hansen > P.O Box 2423 > Cypress, CA 90630 > U.S.A. > [EMAIL PROTECTED] > +1-714-875-8870 > ------------------------------------------------------ > Mailman-Users mailing list > Mailman-Users@python.org > http://mail.python.org/mailman/listinfo/mailman-users > Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py > Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ > Unsubscribe: > http://mail.python.org/mailman/options/mailman-users/brad%40shub-internet.org > > Security Policy: > http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq01.027.htp ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org Security Policy: http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq01.027.htp