Zombie blocking and reputation protection solutions for ISP

Dolphian's anti-spam solution offers unparalleled performance and flexibility, enabling high volume real-time junk mail detection based on content analysis. Infected subscriber PCs are effortlessly identified and remediated.

An estimated 25% of average ISP subscribers' PCs are infected by spam- sending viruses.
These PCs are remotely controlled by organized spammers and coerced into sending spam or viruses. Detection of the PC's sending behaviour is key to helping subscribers eradicate the viruses.

Spam sending machines are detected by blacklists and their IP addresses are blacklisted
In today's Internet, when a subscriber sends spam, his ISP is blacklisted for not preventing it. Getting cleared takes effort and time. By blocking outgoing spam/viruses and helping the subscribers remediate the issues, the ISPs fills in 3 goals:

• regain the ability to send e-mail with the IP address
• improve customer satisfaction by demonstrating support and assistance
• increase ARPU* through value added service

*Average Revenue Per User

Filtering e-mail in real-time, before attracting the blacklist requires high speed content filtering:

• Reputation filters cannot be used in an environment where a significant amount of IP addresses already have a negative reputation
• Only high speed content analysis can detect spam without relying on external resources

At Dolphian we believe reputation filtering can be useful but must be controlled tightly.

It is much too easy to refuse e-mails based on so-called «bad reputation», often resulting in segregation of entire networks.

Dolphian's Message Content Scanner is excellent at detecting on-the-fly the infected or junk e-mails, and preventing them from leaving your network before the subscriber's IP address earns itself a «bad reputation» and is banned from the SMTP world.

Dolphian MCS is fully configurable, for controlled use of reputation filters as only one way to decide a message needs to be classified as junk mail and a subscriber needs to be informed of the situation, and offered a solution!

Fully manageable and lightning fast, Dolphian MCS detects junk e-mail on-the-fly, as they are intercepted and immediately destroys them while reporting the event to enable remediation.

Deployment is easy and riskless.

Dolphian MCS for zombie detection implies interception of port 25 traffic and transparent SMTP proxying. The ISP's existing security and network equipment are used to intercept and reroute all outgoing messages

Dolphian MCS can also be deployed on independent interception servers specifically equipped to avoid SPOF* with load-balanced servers fitted with by-pass network cards.

Log management is handled by the existing log analysis or event analysis equipment or ad'hoc solutions.

With Dolphian MCS, regain control over your IP addresses, and secure your subscribers' ability to send e-mail to the rest of the world, while you have a chance to demonstrate and generate revenue via your added value.