On 11/24/20 1:51 AM, Bob Proulx wrote: > @lbutlr wrote: >> On 23 Nov 2020, at 15:27, Jaroslaw Rafa <r...@rafa.eu.org> wrote: >>> Dnia 23.11.2020 o godz. 11:49:39 D'Arcy Cain pisze: >>>> If someone replies to a mailing list and copies the sender then that >>>> person gets two copies. The above recipe avoids that. >>> Moreover, it breaks the continuity of threads on mailing lists, because it's >>> unpredictable which copy will arrive first, and if only the direct copy is >>> left, the reply will go only to the sender and not to the mailing list. Thus >>> some messages are missing from lists. >> This is not accurate. First, the direct message almost certainly >> arrives first. Second of all, that message still has headers >> indicating it was sent to the mailing list. > That is not accurate. The direct message never went through the > mailing list. The direct copy is missing the mailing list headers. > For this list the direct copy is missing these headers. > > Sender: owner-postfix-us...@postfix.org > Precedence: bulk > List-Id: Postfix users <postfix-users@postfix.org> > List-Post: <mailto:postfix-users@postfix.org> > List-Help: <http://www.postfix.org/lists.html> > List-Unsubscribe: <mailto:majord...@postfix.org> > List-Subscribe: <mailto:majord...@postfix.org> > > The most important of those are List-Id and List-Post without which > the message will not be filed correctly and most mailers will not be > able to list reply correctly. This puts the onus upon the receiver to > manually take corrective action with the message. That is something > that I and probably most readers of this list can do. But for most > random people today they do not understand email and most people today > do not have the skill to do this correctly. For them it is simply > completely broken.
Slight details, those headers indicate that it is FROM the mailing list, the direct message will still have the To: or Cc: header indicating that it was TO the mailing list. That says that a Reply-All will still go to the list (and send a direct copy back to the person who sent this to you, which might be what they want). How the message get filed will depend on how you have your filters setup for the messages, and the difference is perhaps useful. After all, a reply to your posting might be considered of higher importance than just a run of the mill posting to the list, so not filing it the same might be correct. One way to make a personal reply less likely would be for you to add a Reply-To: header pointing to the list submission address, that way if someone is using a MUA that doesn't support the 'Reply-To-List' function and does a Reply-All, it is likely that it will redirect the reply to the list. (More broken MUAs might still send you a copy, if the ignore or mishandle Reply-All.) -- Richard Damon
