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ifilter Managed Email Security is the comprehensive solution to business security issues offered by iseek Communications. ifilter encompasses every facet of email security, utilising such features as multiple spam filtration devices and renowned virus protection networks, as well as intelligent safeguards to provide ifilter customers with unrivalled email security.
Why do I need ifilter?
Email-borne threats consist of virus attacks, spam, distributed denial-of-service (DDoS) attacks, spyware, phishing (fraud), regulatory compliance violations and data loss. ifilter addresses the issues faced by corporations, both large and small, by incorporating preventive and reactive security measures that nullify threats. The unparalleled performance of ifilter delivers industry-leading protection from inbound spam and virus attacks.
ifilter Technical Features
Spam Protection
IronPort Reputation Filters™ provide an outer layer of defence using IronPort SenderBase® data to identify threats in real-time and flag suspicious email senders.
IronPort Anti-Spam™ Filters utilise the industry’s most innovative approach to threat detection, based on IronPort’s unique Context Adaptive Scanning Engine™ (CASE).
Virus Protection
IronPort Virus Outbreak Filters™ identify and stop viruses hours before traditional virus signatures are available.
Sophos Anti-Virus technology provides a fully integrated second layer of virus protection with the highest-performance virus scanning technology in the industry.

ifilter Defence
ifilter provides in-depth defence against spam with a preventive layer of reputation filters, followed by reactive filters. IronPort Reputation Filters are active at eight out of ten of the world’s largest Internet Service Providers. This means that nearly any computer in the world that sends spam is already flagged as dangerous in the IronPort database. Combined with other innovative filters and the leading business Anti-Virus software, ifilter is a total solution to email security issues, stopping harmful mail pre-connection, thus protecting users from harmful mail, and preventing needless bandwidth and data use on viruses, spam and junk mail.
Reduced IT Burden
ifilter uses the industry’s most advanced technology and is managed by iseek. This means that you can be assured that threats and anomalies are being dealt with quickly and thoroughly, which allows your highly skilled IT staff to focus on other problems and leave the email issues to iseek.
Increased End-User Productivity
By securing the network at the gateway level, ifilter acts as a “shock absorber” in front of the groupware server(s). This ensures that end-users are not bogged down by spam, viruses, and other threats. Unlike other solutions, ifilter does not rely on end-users to “train” the system; instead, high accuracy is maintained through continuous monitoring and rule updates, managed by iseek.
Improved Network Efficiency
ifilter features the IronPort Reputation Filtering system, which was the first in the industry and remains the most sophisticated. In its default settings, the system will block over 80 percent of incoming mail at the connection level. By eliminating these unwanted messages, companies save bandwidth (the message is never accepted) and system resources. CPU-intensive spam and virus filters are only used when needed, and rate limiting is a very effective defence against “hit and run” spam attacks or denial-of-service attacks.

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