On Sat, Aug 28, 2021 at 11:39:35AM +0300, Eli Zaretskii wrote:
> > Date: Sat, 28 Aug 2021 09:53:55 +0200
> > From: tomas@tuxteam.de

[...]

> > You mean [Rmail] doesn't honour Message-ID/In-Reply-To/and References
> > when they are there?
> 
> It does, but not for threading purposes.  Rmail's equivalent of
> threading commands are rmail-next-same-subject and
> rmail-previous-same-subject; [...]  It doesn't have any other
> notion of threads, AFAIK [...]

Thanks for the clarification :)

Cheers
 - t