MailChannels email Traffic Control technology manages heavy spam traffic imposed by bot networks of zombie computers (botnets). The company has applied traffic shaping - a network technique that interferes with traffic by selectively limiting bandwidth - to email, causing spam software to time out and move on to more vulnerable targets. Instead of merely blocking emails, the MailChannels system prevents spam from leaving the spammers' servers. Traffic Control uses traffic shaping and other "reputation filtering" techniques to reduce spam by 50-75% more than current connection management techniques such as blacklisting and grey-listing, while also allowing mail servers to process 3 times the email traffic.