초록 ▼

The present invention provides a system and method for filtering unsolicited electronic commercial messages. A system and method according to the present invention for screening out unsolicited commercial messages comprises the steps of receiving a message from a sender, sending a challenge back to

The present invention provides a system and method for filtering unsolicited electronic commercial messages. A system and method according to the present invention for screening out unsolicited commercial messages comprises the steps of receiving a message from a sender, sending a challenge back to the sender, receiving a response to the challenge, and determining if the response is a proper response.

대표청구항 ▼

[What is claimed is:] [1.]receiving an electronic message from a sender, the message including an address field containing a sender's address;comparing the sender's address to a list of accepted senders;sending a prompt back to the sender if the sender's address is not contained in the list of accep

[What is claimed is:] [1.]receiving an electronic message from a sender, the message including an address field containing a sender's address;comparing the sender's address to a list of accepted senders;sending a prompt back to the sender if the sender's address is not contained in the list of accepted senders, wherein the prompt is designed to be answered by a person and not a machine.