So, you select the message you want to save by typing the appopriate message number and then after reading the message through to the end yo u type s filename to save the e-mail message. Trust me on this one. It is an important part of using any e-mail system. Before you can send someone a message you will need to know the fully qualified Internet e-mail address. Try to identify the message clearly, but briefly.
Many users screen their e-mail by reading who sent the mail and what the subject is.
After you have typed the subject you are free to type the body of your letter. Please be aware of the fact that UNIX mail does not include a word wrap feature. You will need to press return at the end of each line in order to continue on the next. Once you finish the body of your letter, you send the message by typing the key sequence CTRL-D . This ends the creation process and sends the message on its way.