Traffic Control 4
Traffic Control
Traffic Control is the world's fastest SMTP engine, delivering 10 million messages per hours on a single eight-core Intel® Xeon® server. Traffic Control offers a combination of innovative features to address the inbound and outbound email security needs of the world's largest email providers.

Light-weight, easy to deploy, and effective
We've got you covered inbound…
Developed by experts in botnet behavior, Traffic Control provides the world's most effective email traffic shaping solution. Traffic shaping attacks the financial incentives that drive spammer behavior, cutting off spam before other approaches like blacklisting and content filtering have had time to catch up.
…and outbound
The best way to control spam is to stop it at its source, which is why Traffic Control offers a comprehensive set of features aimed at controlling outbound spam. Whether it's filtering your entire subscriber network through a small cluster of Traffic Control machines, or preventing webmail abuse, we've got you covered.
Easy to manage
Traffic Control is managed through a centralized console – high performance clustering is standard right out of the box. Powerful log indexing and search means faster response times and reduced help desk costs.