Backing up your email
Back up, or Not?
Check to see what type of email account you have (POP or IMAP), and decide accordingly:

Launch Entourage and open up any folders you may have on the left side of the screen.

To back up your email, you must create a folder (or subfolder) in the "On My Computer" section of Entourage to store your saved mail.

A new folder will be created and highlighted, ready to be named.
Go back to your IMAP account ("Gmail", in this example), and select the INBOX by clicking on it.