in reply to Program for reading existing mail

A PerlMonk came up with the cool package NeoMail. It's ready to go in minutes. Give it a whirl. I think you're confused about POP and a web-based mail system. POP has a client-server relationship so the POP client downloads emails from the server. The Web-based thing may or may not involve POP but more usually does not since the web server can reside on the same server as the mail server, thus pulling them out the spool which is obviously faster.
AgentM Systems nor Nasca Enterprises nor Bone::Easy nor Macperl is responsible for the comments made by AgentM. Remember, you can build any logical system with NOR.