I keep a copy of my mutt config both here on the site as well as in my public dotfiles. Eventually I'll likely document my reasoning, preferences and the tradeoffs made in that config (and change my mind on most in the process).

Vim

Since I use vim as my editor I also added the following line to my vim configuration file to autowrap my lines at 72 characters, but only for mutt composed messsages.

au BufRead /tmp/mutt-* set tw=72