On 2018-02-07 13:17:21 +1300, Richard Hector wrote: > On 07/02/18 02:18, Vincent Lefevre wrote: > > On 2018-02-06 14:36:31 +1300, Richard Hector wrote: > >> The behaviour and policy of this list, when followed, does what I want. > > > > But the other users cannot know what you want if you do not set > > "Mail-Followup-To:". > > It's not really up to me, is it. If you're replying to my mail, it's > ultimately up to you to decide whether it's better to send to the list, > or to me.
The "Mail-Followup-To:" header has no influence on this decision (reply to the list with optional Cc's or private reply). It allows the MUA to decide between: * send the mail to the list only; * send the mail to the list + Cc to you. Actually, this is even more complex because other participants of the discussion are also involved in the construction of the "Mail-Followup-To:" header. > My client (Thunderbird, at the moment) has a "Reply" button and a > "Reply List" button, so I can make that choice. Yes, but this is not what "Mail-Followup-To:". This header concerns only "Reply List". The goal is that users who wish to be Cc'ed will automatically be Cc'ed. And in case of a "Reply to all" (I suppose that your MUA also has such a feature), the users who do not wish to be Cc'ed will not be Cc'ed. > What's important is that that choice isn't restricted. If you set > Mail-Followup-To, you're attempting to make that choice for me (I > haven't been following who sets what headers, so I'm not sure what > Thunderbird does with it). But this is precisely what the users want: "please Cc me in replies", "please do not Cc me in replies". This is the goal of Mail-Followup-To to handle this automatically. > What's also reasonably important is that people don't accidentally send > a private reply to the list, so any header (whether added by the sender > or by the list) that causes the replying MUA to do that automatically > is, IMHO, a mistake. I repeat: the "Mail-Followup-To:" header has absolutely no influence on that. A private reply will never consider this header. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)