Storing messages on a server is useful if you need to read mail from more than one computer. When you log on to your account from a different computer, Outlook Express downloads messages according to the options you have set. You can store messages on either a POP3 or IMAP mail server.
If you are connected to a POP3 mail server, click Leave a copy of messages on server.
If you are connected to an IMAP server, type the path in the Root Folder Path box. The root folder path identifies the mailbox that contains your folders on the server.
Do not end the root folder path with a hierarchy character. For example, ~username/Mail is a valid root folder path, but ~username/Mail/ is not. If you are not sure what to type here, leave this box blank.