A system and method allows some or all of an e-mail message, such as the sender or its contents, to be authenticated, for example, to identify a message as potential spam....http://www.google.fr/patents/US8132011?utm_source=gb-gplus-shareBrevet US8132011 - System and method for authenticating at least a portion of an e-mail message
System and method for authenticating at least a portion of an e-mail message
