IMAP has a number of advantages over POP. The POP protocol requires the currently connected client (such as Outlook or Mac Mail) to be the only client connected to the mailbox at any one time. If you use IMAP you can have multiple connections active at any one time. In addition to this all the devices that you have connected to the mail box on our server will be synchronised so you can access your mail wherever you go! If for example you wanted to have Outlook and your iPhone connected to your mailbox simultaneously to alert you of new mail, you would need to choose IMAP in order to do so.
