Welcome to http://exmh.sourceforge.net/
exmh is an email user interface for the MH (a.k.a. nmh) that is written in Tcl/Tk. exmh specializes in high-volume email users so you can efficiently deal with several hundred email messages each day. It has been in public use since 1992 and has all sorts of cool features that were added by its users. These include integration with PGP, Glimpse, MIME, faces/picons and much more.