The fetchmail package contains fetchmail and fetchmailconf. When executed as a user, this will source that users ~/.fetchmailrc and download the appropriate mail. When run as root, users who have a .fetchmailrc will have their mail downloaded and delivered accordingly. This program provides a Tk GUI interface to your ~/.fetchmailrc making it much easier to configure. However you will require, Python, and it must have the Tkinker module available.