Note: IMAP is the recommended incoming server type. See IMAP vs. POP.
Note: This is an illustration of IMAP settings. POP settings will display the POP port number which is 995.

Note: The Address Book is a separate application from Mail and is opened from the Applications list.
If you have configured your e-mail client to use IMAP, folders are created and stored on the IMAP server. You can also create folders on your local machine if your client supports that feature. If you switch e-mail clients, your IMAP folders will still exist on the IMAP server, but you may not be able to view them. In order to access those folders in your new e-mail client, you must subscribe to those folder(s). To subscribe to your folders, do the following:
Note: If the mailbox list is not displayed, from the View menu, click Show Mailboxes and then click the arrow to the left of the account to display your IMAP folders.
Note: The Junk mailbox is created when you choose the Move it to the Junk mailbox option.
Note: Click the Advanced button to define additional conditions the e-mail must meet before the filter is applied.