/bin/ed isn't so bad after all, but hey... knowing how to use ex, vi, and vim helps lol.
The old Berkeley mail interface is very interesting, but seems to lack mutts infinite configuration. Most of the time, I just use webmail. Google Chrome (Windows) or some thing from $BROWSER (*nix) is always open, so typically use that; but some times I do like to work from my terminal hehe. It even looks like the nail/heirlom-mailx program might add the stuff I desire.
TODO: inhale /usr/share/doc/usd/07.Mail (the reference manual), inhale nail documentation.