How do I encrypt my e mail message using Eudora Pro 3 0?

Eudora is an e-mail client used on the Microsoft Windows and Macintosh operating systems. It also supports several palmtop computing platforms, including Newton and the Palm OS. The software was named after Eudora Welty because of her short story "Why I Live at the P.O." Eudora was developed by Steve Dorner in 1988 as a part of his studies at the University of Illinois at Urbana-Champaign and was acquired by Qualcomm in 1991.