Press Releases

Rack-Soft Releases 4PSA Clean Server 4, the New Antivirus for Plesk Servers Based on 4Grid Technology

October 06
17:35 2008

Web Host News – Rack-Soft launched today 4PSA Clean Server 4, the next generation email and file system antivirus for Plesk servers, based on the 4Grid technology. The software introduces distributed scanning, delivery policies and advanced antivirus control features. 4PSA Clean Server uses the award winning ClamAV antivirus engine.

4PSA Clean Server 4 solves all email antivirus scanning issues that Plesk administrators face today. With a traditional antivirus, email scanning is performed on the hosting server. As the scanning process is CPU intensive, regular processes serving HTTP or Database are affected, leading to sub-pair performance. On a hosting server using an old generation antivirus, high email flow can lead to Denial of Service or delayed email delivery.

To solve some of the problems associated with host level email scanning, providers deploy specialized email filtering appliances in front of the hosting servers. These usually introduce single points of failure, can scan a limited number of emails, hardly integrate in an automated environment, and are not economically efficient.

4PSA Clean Server 4 introduces a new approach to solve these issues by clustering the scanning processes. The product can be installed on one server like a traditional antivirus and when the number of servers increases, the hosting company can introduce specialized scanning nodes that handle email scanning for the entire infrastructure. Scanning requests are distributed automatically between scanning nodes and email delivery is not affected even when a hosting machine is flooded with emails.

The product is based on the proprietary 4Grid, an innovative technology born to allow providers to create service delivery clouds. “4PSA Clean Server 4 is our first public release of a product based on 4Grid framework. Together with our customers, we tested the new version in large environments with more than two hundred Plesk hosting servers. Our testing partners were excited to see that the product took the scanning load from the hosting servers, allowing these to better answer to requests and serve more customers. With 4PSA Clean Server, hosting businesses are no longer limited by email volume”, said Bogdan Carstoiu, Rack-Soft’s General Manager.

4PSA Clean Server 4 is compatible with Linux/Unix servers running Plesk 8.2.0 and newer versions. The product is also available in Virtuozzo installation templates format, simplifying deployments on virtualized servers. 4PSA Clean Server 4 provides the best TCO in business with server license prices starting with 99USD.

About Rack-Soft
Rack-Soft specializes in development and integration of server level software that supports major operating systems and platforms. The company delivers solutions that help service providers and enterprises control their infrastructure, automate processes, and improve communications.

The company’s explosive success is based on excellence, innovation, and customer oriented processes. The core of Rack-Soft’s business philosophy is based on ISO 9001 certified quality management system. For more information, please visit

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