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Outbound Spam Guard (OSG)

The CYBONET OSG is a carrier-grade solution that can be easily deployed to scan and block up to 99% of all unwanted or malicious outbound email traffic. Easy to deploy, the OSG functions as a transparent proxy that informs the Service Provider in real time and with granular level statistics, which IP addresses or hosts within their networks are being controlled by botnets.

The OSG is the ideal solution to neutralize botnet activity within a Service Provider’s network.





  • Improved IP and ISP ReputationBlocks up to 99.8% outbound spam so that IP addresses are not reported to, or removed from blacklists
  • Detailed Real Time StatisticsGraphic and textual statistics for Service Provider’s outbound email traffic
  • Neutralize Botnets Within ISP NetworkReal time knowledge of infected PCs in network enables ability to quickly address infected PCs
  • Maximize Use of IPsReduce and eliminate number of black listed IPs and even leverage Port 25 for visiting companies that must use their own email system
  • Available as SW Compatible With Virtual Platforms Such as VMware, Hyper-V and Citrix Xenserver
  • Improve Bandwidth Consumption More efficient usage of bandwidth consumption 

Solution Highlights


Carrier Grade Solution

When deployed on a standard 1u Server, the OSG easily handles 2+ Class B subnets and up to 10,000+ SMTP sessions per second. The OSG has the ability to process billions of messages daily and is robust enough to handle peak load 'botnet bursts'.

Multi-Layer Spam Protection

The OSG's multi-layer screening is based on botnet behavioral characteristics. CYBONET Sub Layer IP Screening Technology also includes an additional recurrent pattern detection content inspections engine. By limiting screening activities to behavioral characteristics, the OSG limits false positives often associated with deep content inspection of outbound emails. 

Comprehensive Reporting and Statistics

The OSG's reporting capabilities enable real time visibility into Service Provider's outbound SMTP traffic. Granular level functionality ensures fast identification of infected IPs that are being used to send spam and allows the Service Provider to quickly neutralize the immediate threat.