Mail User Agents

The SCO OpenServer system MAIL package includes a variety of Mail User Agents (MUAs):

mail(C)

the operating system's command-line based message processor

scomail(XC)

the graphical Desktop message processor

SCO Shell Mail

the character-based mailer designed for the SCO OpenServer menu-based shell, scosh(C)

Individual users on a system can choose their own MUA.