Hi,

It'd be nice if notmuch-show could treat the snippets produced by Emacs'
`message-mark-inserted-region' specially, e.g.:

--8<---------------cut here---------------start------------->8---
foo
--8<---------------cut here---------------end--------------->8---

and make them foldable.

(Note that the enclosing lines are defined in ‘message-mark-insert-begin’
and ‘message-mark-insert-end’.)

Thoughts?

-- 
Pierre Neidhardt
https://ambrevar.xyz/