System and method for e-mail authorization

摘要

An e-mail registration system, preferably with aliases, is provided. According to one embodiment, users may register an e-mail address and a password in a database 250 at an alias relay server 102. Then, when a third party attempts to reply to the registered user, the third party will be presented with a sign on screen. Only if the sender is himself or herself a registered user will e-mail be allowed to be sent directly. To ensure that spammers do not abuse the registration system, only a limited number of e-mails may be allowed to be sent by registered users per day. Also, in order to register, a credit card number or other affirmative identification may need to be provided.