A method for filtering e-mail messages based on an identification of a true sender and assessing the reputation of the true sender among other users of an e-mail network. The true sender of a received e-mail message is identified in one embodiment by combining data in the e-mail message that is nearly...http://www.google.com.hk/patents/US20040177120?utm_source=gb-gplus-share專利 US20040177120 - Method for filtering e-mail messages
