Computer software for protecting individual computer users and servers from receiving unsolicited bulk e-mail by tagging, flagging, blocking, deleting, highlighting or otherwise automatically processing such messages; Messages are filtered against specific technical criteria such as public, proprietary and private, user-defined or peer-to-peer defined blacklists and whitelists; The blacklists and whitelists contain information on servers, IP ranges, e-mail addresses, domain names, language pa...