As described on ASSP website and WIKI, ASSP could be considered the absolute best SPAM and VIRUS fighting weapon that the world has ever known .
ASSP includes RBL checks, Bayesian filter , HELO SPF PTR MX A records checks, an advanced Penalty box, Delaying (greylisting) filter, URIBL , BombRe , automatic whitelisting , SPAM Scoring mode, ClamAV antivirus integration, SPAM reports,low hardware requirements , and more ...