If you want to download your mail from the server, POP is for you.
Most of our customers want to use multiple devices and keep their mail on the server so they can check their messages from any device. IMAP can achieve this for you. Your mail then resides on the server and gets backed up nightly automatically.
MS Exchange is a product that can give you a larger mailbox and allow you to share calendars, contacts, and folders within your inbox. MS Outlook is the client or it can be accessed through Outlook Web Access.
Contact us and we can help walk you through which option may be right for you.