With 94% of email classified as junk (spam,phishing and virus-laden messages),allowing such distracting and dangerous traffic into your network can grind your business communications and organizational productivity to a halt. Removing this junk email at the gateway optimizes network efficiency,and enhances email and employee productivity. SonicWall Comprehensive Anti-Spam Service (CASS) offers small- to medium-sized businesses comprehensive protection from spam and viruses,with instant deployment over existing SonicWall firewalls. CASS speeds deployment,eases administration and reduces overhead by consolidating solutions,providing one-click anti-spam services,with advanced configuration in just ten minutes. Outperforming RBL filtering,CASS offers more than 98% effectiveness against spam,dropping more than 80% of spam at the gateway,while utilizing advanced anti-spam techniques like Adversarial Bayesian filtering on remaining email.