The International Journal of Innovative Research in Computer and Communication Engineering
Electronic mail (e-mail) is associate degree economical variety of communication that has become wide adopted by each people and organizations. Spam is email sent in bulk wherever there's no direct agreement in situ between the recipient and also the sender to receive email solicitation. To forestall the delivery of this spam, an automatic tool named a spam filter is employed. During this paper, Optical Back Propagation (OBP) technique is employed as an automatic tool to spot whether or not a message is spam or not supported the content of the message.