With nearly 94% of email classified as junk (spam, phishing & virus-laden messages), allowing such distracting & dangerous traffic into your network can grind your business communications & organizational productivity to a halt. Removing this junk email at the gateway optimizes network efficiency, & enhances email & employee productivity. Sonic WALL Comprehensive Anti-Spam Service (CASS) offers small- to medium-sized businesses comprehensive protection from spam & viruses, with instant deployment over existing Sonic WALL firewalls. CASS speeds deployment, eases administration & 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.