1. A system for eliminating unauthorized email sent to a user on a network comprising: (a) an email client for allowing the user to receive email sent on the network addressed to a unique email address of the user, (b) an email-receiving server connected between the network and the email client for receiving email addressed to the unique email address of the user, said email-receiving server having an authorized senders list (ASL) module which maintains an ASL list of email addresses of senders authorized to send email to the user, and (c) an email rejection module operable with the ASL module for rejecting the receipt of email addressed to the email address of the user if the email address of the sender is not one that is maintained on the ASL list for the user.