The Barracuda Networks Spam Firewall anti-spam appliance protects your system from denial-of-service attacks, and provides an IP block list, rate control, virus checking, proprietary virus check, user-specified rules, spam fingerprint check, intent analysis, spam rule-based scoring, and Bayesian analysis. Every hour, Barracuda Networks sends updated rule definitions to the appliance to protect against new spam and virus attacks.
This appliance comes in five sizes, supporting from 1,000 to 30,000 active users. Prices start at US$1,999 with no per-user licensing.
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