One of the main features of CSuite is e-mail. Even without internet access the users could still send email to one another on the same system. With internet access CSuite users can send e-mail around the world.
CSuite uses the Pine mail reader program, which is opened by using the "g mail" command. When pine opens it takes the user to the inbox. From the inbox the user can read mail, and compose messages. Pine also allows users to forward mail, reply to messages, export messages, and many other features.
Pine also allows mail to be organized into folders to help organize your mail. By default Pine uses three folders; inbox, sent-mail, and saved-messages.
There is also a main menu in Pine which allows users to access other features like address book and configuration.