[Users] Forwarded message listed under wrong email

[Paul Steyn]

Apologies, I forgot to include my system details, in case it's
relevant:

Claws Mail version 3.13.2
Running on Arch Linux (updated today).


On Sun, 28 Feb 2016 23:39:38 +0200
Paul Steyn <paulsteyn1 at afrihost.co.za> wrote:

> Hi All,
> 
> I was wondering if anybody could shed some light on how Claws threads
> mail messages in the message list.
> 
> I have two messages in a folder, both with the same subject, but from
> different email addresses. Well, specifically, the "name" part of the
> email address is different, but the actual email address itself is the
> same (i.e. one is like so "John Doe <nobody at nowhere.com>", and the
> other like so "Jane Doe <nobody at nowhere.com>". The Reply-To is also
> different for each one. I forwarded the second one, but to the
> Reply-To address of the first one (the same actual email address as
> the first one, but with a different "name" part). When I moved the
> message from the sent folder into the folder with the two emails, the
> forwarded email now appears under (i.e. as a child of) the first
> email, instead of the second one, which is the one I actually
> forwarded.
> 
> On examining the forwarded message, I can find no "in reply to" or
> similar header. I had assumed that Claws would generate such a header
> when sending replies or forwards, but I'm afraid I'm not really
> familiar with these things. I seem to recall a similar question on
> this mailing list recently, but I think the circumstances were
> different, and as I'm not actually sure what the correct terminology
> is here, I'm not quite sure where to look for more information.
> 
> So my question is what is Claws using to match the forwarded email to
> a parent email, and is there a way to "fix" this so that the forwarded
> email appears under the correct parent? Or can someone point me in the
> direction of the correct place to read up on this behaviour?
> 
> Many thanks for any assistance.
> 
> 
> Paul