Under Size, this shows the size of files in your box. Under Message Count, this will show the number of messages in your inbox. From will be the sender. Subject will show the information in the subject line of the e-mail that was sent to you. Date will show the date that the e-mail was sent to you and recieved in the inbox.
Lines show lines of text in the message.
Click on the e-mail subject to read the mail. Read the mail and simply choose the options on the screen if you wish to reply forward or delete the message. Summary back to Screen 3. Compose will allow you to create a new e-mail. Search will search the contents of your in box.