Hardware firewall, the basics
Its unique structure allows the Barracuda firewall system to process millions of email messages per day. Part of the effectiveness of the Barracuda firewall system rests with the fact that spam and virus filtering functions are offloaded, thus reducing the load on the email server. Outgoing mail receives the same scrutiny. The Barracuda firewall employs outbound email filtering techniques such as attachment scanning, virus filtering, rate controls, and encryption to assure the legitimacy and safety of each outgoing message. Last but not least, the Barracuda firewall system is easily affordable.