(spam scanner) spam (or junk e-mail) costs u. s. organizations billions of dollars a year in spam-prevention software, equipment, network resources, bandwidth, and lost productivity. research online some of the most common spam e-mail messages and words, and check your own junk e-mail folder. create a list of 30 words and phrases commonly found in spam messages. write an application in which the user enters an e-mail message. then, scan the message for each of the 30 keywords or phrases. for each occurrence of one of these within the message, add a point to the message’s “spam score.” next, rate the likelihood that the message is spam, based on the number of points it received.