Mark Walters <markwalters1009@gmail.com> writes: > I think we already have this, except it is called > notmuch-mua-hidden-headers. It defaults to '("^User-Agent:"). > > I think it would be reasonable to add In-Reply-To to this list. > > However, if I read the code correctly, currently we are changing > message-hidden-headers globally which doesn't feel the right thing to > do. Probably we should do something more like you suggest, and do the > overriding just in notmuch-message-mode. > Summarizing, I see 3 related changes here - fixing the code to let-bind message-hidden-headers instead of globally modify it - adding in-reply-to notmuch-mua - providing a keybinding to toggle visibility of hidden headers that works better than the current use of widen d