Messages are downloaded to one workstation. Not usefull if you log in on different machines. IF pop client support it. Tasks and appointments are sent as regular mail messages. Cannot view message properties.
Default configuration downloads all messages to local workstation.
Client service calls will be at unsupported software rate. IMAP PRO Short connection time when accessing over dial up. Ability to work offline. Limited features depending on client. Not encrypted - possibility of compromising password and mail.