On 24 Nov 2020, at 02:44, Jaroslaw Rafa <r...@rafa.eu.org> wrote: > Dnia 23.11.2020 o godz. 16:29:13 @lbutlr pisze: >> >> This is not accurate. First, the direct message almost certainly arrives >> first. > > Unless you use greylisting
That's a whole different issue and anyone using greylisting now I would never use for email. But it doesn’t matter which message arrives at my server first, the duplicate gets trashed and the first one goes where it should. > I'm not talking about client getting confused about threading. I'm talking > about the fact that when you get only an off-list message and reply to it, > the reply goes only to the original sender and not to the list, No, that is not the case. When I get a message from bob that was also sent to postfix-user several things happen. First, the message has a reply-to: header added for the postfix list. All mailing lists get a reply-to header added with the list address. Second, the message has a "X-List-name: postfix" added to it regardless of who sent it. Then, on my client, all the messages that are "X-List-name: Postfix" and are not archived are shown in a smart mailbox. > thus messages are missing from thread on the list (thread understood as an > abstract concept, not a particular implementation in this or that client). That's not how it works here, and not how it's worked here since I started using procmail in the late 90s, though now I use sieve. -- "I can't see the point in the theatre. All that sex and violence. I get enough of that at home. Apart from the sex, of course." - Baldrick