I am sending this from inside acme Mail on Linux.
Or at least the program is called Mail.
It's not actually the Mail from Plan 9.

I am running mh and have 'customized' it to print
something close to sensible output.  Mail itself
is a shell script.  The interactive delay is a little
annoying sometimes, you have to run inc and Get
to check for new mail, and the script itself needs
to be cleaned up, but it's still entirely usable.

I have attached my .mh_profile, Mail/mhl.format,
Mail/mhl.headers, and the Mail script itself.

Russ