A community-based “green list” (CGL) message filter for mail service providers. The CGL filtering enables trusted messages to be delivered directly into a user's inbox folder and other messages to be delivered to other folders associated with the user. The CGL filtering indicates which messages are...http://www.google.fr/patents/US7181498?utm_source=gb-gplus-shareBrevet US7181498 - Community-based green list for antispam
