Method and system to discourage a sender from communicating an electronic message to a user

摘要

A system to update a filter to discourage a sender from communicating an electronic message to a user. The system receives a message from a sender that includes a network address of the sender and determines whether to discourage the sender from communicating a second message to the user based on input from a user. If a user indicates that the sender should be discouraged, the system updates the filter by registering the network address of the sender in the filter that is subsequently utilized to communicate a response message to the sender that includes an error code indicating that the network address of the user is an invalid network address. A system to use a filter to discourage a sender from communicating the second message to a user and a system to automatically remove a user from a mailing list are also described.