Protection Against Email-borne Threats
The Barracuda Spam Firewall provides comprehensive protection against the most current email-borne threats that can cripple your network if left unprotected. With our proprietary ten-layer defense system, the Barracuda Spam Firewall optimizes performance of your email server while utilizing the following protections:

• Anti-spam The algorithms and methods used by the Barracuda Spam Firewall are the most comprehensive and most advanced in the industry at detecting and filtering spam resulting in the lowest rate of false positives.
• Anti-virus By utilizing dual layer virus blocking, decompression of archives and file type blocking, the anti-virus engine in the Barracuda Spam Firewall provides complete virus protection.
• Anti-spoofing This technology prevents the use of forged or "spoofed" sender addresses on unsolicited email. The anti-spoofing feature also allows larger organizations to specify a list of IP addresses that are allowed to have a "From" address that appears from inside the organization to support multiple sites and multiple email servers.
• Anti-phishing The Barracuda Spam Firewall provides robust protection against phishing schemes which are often used to gather confidential information about an organization or it's individual users.
• Anti-spyware (Attachments) – All attachments are scanned and any spyware executables are detected and eliminated immediately.
• Denial of Service Protection Rate controls are utilized to stop denial of service attacks as well as dictionary based spam attacks. These rate control systems are integrated and automatic in the Barracuda Spam Firewall.

End User Control Features
The Barracuda Spam Firewall contains numerous end-user features that allow for individual tuning and greatly enhance the accuracy of our spam filtering.

• User based filtering The Barracuda Spam Firewall can be configured to set spam policies by the end user on an individualized basis or on a global corporate level.
• Individual Spam ScoringThe individual spam scoring feature allows end users to set their individual thresholds for spam tolerance providing personalized control over spam policies.
• Personal Allow and Block Lists The Barracuda Spam Firewall can be configured to allow end users to have control over their individual allow and block lists which further reduces the chance of false positives.
• End-User Quarantine The Barracuda Spam Firewall provides the ability to setup quarantine mailboxes where users can direct questionable email for later review. This greatly reduces the support load for large organizations.
• Digest Emails A daily email is sent to all end users with a quarantine account summarizing the contents of their individual quarantine mailboxes.
• Microsoft Outlook and Lotus Notes Integration Barracuda Networks provides a software plug-in for both Microsoft Outlook and Lotus Notes end users. With this tool, users can classify messages as spam or not spam in order to fine-tune the filtering and further eliminate any chance of false positives.