On Thu 24 Aug 2017 at 12:30:35 (+0300), Reco wrote: > Hi. > > In-Reply-To: <[email protected]> > [...]
If you type:
:
set edit_headers
you should get the headers included in your composition window,
and you can then stick the In-Reply-To: amongst its peers.
(I'm assuming neomutt honours this mutt switch.)
Cheers,
David.

