This document was developed to help you make an informed decision on which protocol is best for you. The POP protocol is the easiest to implement and use.
POP is still the default protocol for most mail reader clients.
POP's Positive Features Clients are available for PCs, Macs, and Unix. All messages and mailbox information are kept on the local machine. All messages are downloaded regardless of size. All messages are stored on the client machine. Therefore you do not have access to the mail boxes if you are away from your client machine.