Database for receiving, storing and compiling information about email messages

摘要: A database for receiving, storing, and compiling information about senders of e-mail messages that is used to categorize received messages. Data the sender contained in message identify actual using a signature combining pieces from header or derived header. This other then sent by each member an network one more central databases (in embodiment, will also be stored at associated with recipient's program filtering software) which stores compiles statistics e-mails indicate likelihood unsolicited determine reputation (a good indicates does not send unwanted while bad sends messages). Information recipients order spam (information may obtained local software).