On Sun, May 03 2015, Gregor Zattler <telegraph@gmx.net> wrote:

> Dear notmuch developers,
>
> it would be helpful if it was possible to configure notmuch
> (Emacs interface) to show the Message-Id: -header in notmuch
> show.

I once desired this feature too (and tried to set the visible headers (or
whatnot)... but since then I've managed myself with 'c' 'i'. I.e. keybinding

c i runs the command notmuch-show-stash-message-id

shows message-id in minibuffer (and is yankable with c-y) (copying using 
mouse in graphical emacs is harder, one have to go to *Messages* buffer to
get it but...)

Tomi


>
> Thanks for your attention.
> Gregor