Patent ID: 6996606
Filing Date: 2006-02-07
Classification: G06Q

Abstract:
1. A junk mail rejection system, comprising: a first mail distribution service center having a database in which a first electronic mail address of a subscriber is registered, receiving electronic mail transmitted to the first electronic mail address through a cable/wireless network, and transmitting the electronic mail to a terminal of the subscriber; a second mail distribution service center having a database in which a second electronic mail address of the subscriber is registered, and receiving electronic mail to the second electronic mail address through a cable/wireless network; and a third mail distribution service center having a database in which a third electronic mail address of the subscriber is registered, and receiving electronic mail to the third electronic mail address through a cable/wireless network, wherein said first mail distribution service center registers in the database one or more source electronic mail addresses as acceptable electronic mail addresses, associated with the first electronic mail address, from which electronic mail can be transmitted to a terminal of a subscriber among source electronic mail addresses of electronic mail addressed to the first electronic mail address, and comprises: reception means for receiving electronic mail to the first electronic mail address; reception enable means for determining whether or not a source electronic mail address of electronic mail received by said reception means is an acceptable electronic mail address registered in the database; and distribution means for transmitting the electronic mail to a terminal of a subscriber only the case when the reception enable means determines that it is an acceptable electronic mail address; said second mail distribution service center registers an electronic mail address of a transfer destination of a subscriber in the database associated with a second electronic mail address, and comprises reception means for receiving electronic mail to the second electronic mail address; and transfer means for forwarding the electronic mail received by said reception means to a third mail distribution service center directly through a cable/wireless network, or through another center; and said third mail distribution service center registers an electronic mail address of a transfer destination of a subscriber in the database associated with a third electronic mail address, and comprises reception means for receiving electronic mail to the third electronic mail address; replacement means for replacing a source electronic mail address of the electronic mail received by said reception means with one of the acceptable electronic mail addresses; and transfer means for forwarding the electronic mail whose source has been replaced by said replacement means to said first mail distribution service center directly through a cable/wireless network, or through another center.