Pine
Pine - a Program for Internet News & Email - is an easy-to-use character based mail program available on UBUnix, the central timesharing cluster. Pine features simple menus and context sensitive online help. It also comes with its own easy to use editor, pico. Versions are available for various flavors of Unix as well as for personal computers running a Microsoft operating system.
Users of Windows and Macintosh computers may want to consider using Mulberry as their email client.