1# $FreeBSD$ 2 3 Filtering out SPAM from your site 4 5Sendmail now includes excellent tools to block spam. These tools are 6available as FEATUREs that you can add to your site's .mc file. Proper use 7of these FEATUREs will prevent spammer from using your site as a relay as 8well as significantly decrease the amount of spam that arrives at your 9site. No set of anti-spam tools will block all spam without blocking some 10portion of legitimate mail as well. Therefore, these FEATUREs are designed 11to prevent as much spam as possible without blocking legitimate mail. 12 13These tools are discussed in /usr/share/sendmail/cf/README. Read the 14section entitled "ANTI-SPAM CONFIGURATION CONTROL". Example usage and 15additional tools can be found in /usr/share/sendmail/cf/cf/knecht.mc. 16 17