Outbound Email Spam

How much Spam is leaving your Network?

Malware authors often prey on residential broadband subscribers - the weakest, most unprotected nodes on a network. Home users are difficult to protect en masse, and service providers are forced to bear escalating support costs and attacks on their ability to deliver the best possible Internet experience.  Using home computers to send massive amounts of unsolicited e-mails is a key component of the malware economy – malware authors keep the profits while service providers are stuck with the clean-up costs when IPs get blacklisted or subscribers complain.

By applying patented behavioral algorithms to all outbound mail traffic, regardless of port or destination, and by identifying or locking down popular evasive mechanisms such as spam relays, Sandvine can identify abusive machines on the network and block or limit their outbound mail traffic.

With a network-based solution built on the Sandvine Policy Traffic Switch, advanced protocol detection identifies all mail traffic and deployment is possible anywhere in the network where mail traffic can be inspected.  Furthermore, the behavioral algorithms are content-agnostic and fully customizable, so you don’t have to worry about privacy concerns or one-size-fits-all definitions of abuse.  A network-based solution can filter the vast majority of outbound spam before it even reaches your mail servers, freeing up your Bayesian filters to focus on further trimming the spam.

Sandvine pioneered the behavioral approach to network protection that is gaining widespread acceptance as the only realistic defense against modern malware.  By building a layer of intelligence into the network itself, a layer that is capable of catching diverse and zero-day threats, we believe that a service provider can dramatically reduce the expenses associated with protecting a network’s operational integrity.