Content Filtering

Stop SirCam, Magistr, and other email-borne menaces before they stop you. Whether by manual intervention or the use of filtering software, keeping viruses out of your inbox is the only viable means of protection.

An interesting whitepaper from Security Software Systems discussing the pros and cons of content filtering and blocking.

8e6 Technologies specializes in "pass-by" Internet content filtering for large enterprises with many Internet-connected users.

In this eMedia Live article, "Content Filtering Comes to DVD", Eric Schumacher-Rasmussen discusses the inevitable evolution of content filtering technology to a new medium - the home DVD player.

Clearswift Mimesweeper products provide a full line of gateway and mail server content filtering for the enterprise. Scans email for confidentiality breaches, pornography, and legality, as well as blocking of harmful types of files. Several antivirus plug-ins available.

DansGuardian is a web content filter running on Linux, FreeBSD, OpenBSD, NetBSD, Mac OS X, and Solaris. It filters page content via several different methods, including phrase matching, PICS filtering and URL filtering. It does not rely solely on blacklists.

eSafe provides proactive, multi-tiered Internet Content Security for enterprise gateway and mail servers.

GateFilter Plug-in is a software Internet filter providing content filtering for WinGate. The plug-in uses technology based on Artificial Content Recognition (ACR), which analyzes the content of a website, determines if it is inappropriate, and blocks the site if necessary. Supports English, German, French, and Spanish

Mail Essentials provides email content checking, antivirus software, and spam blocking for Microsoft Exchange and SMTP.

Godano's NTMail includes antispam and other security capabilities while GLWebMail allows users to access their email from anywhere. Both plug into the Virus Scanner Manager to extend protection.

Provides real-time content filtering, spam blocking, and reporting. Optional eManager plug-in integrates seamlessly with InterScan VirusWall to safeguard intellectual property and confidential information, block inappropriate email and attachments, and protect against viruses. eManager also enables Trend Micro Outbreak Prevention Services.

From Trend Micro, InterScan Messaging Security Suite provides comprehensive virus protection, flexible policy-based content filtering, and easy-to-use management tools to help monitor and control SMTP and POP3 traffic at the messaging gateway.

From Trend Micro, InterScan VirusWall gateway virus protection and content filtering solution for Windows NT, Red Hat, SuSE, and Turbo Linux.

LANguard content filtering & anti-virus for ISA server is built on top of Microsoft ISA server and scans all inbound material for viruses, Trojans or objectionable material. Includes rules-based policy management.

In his article, "Is email monitoring legal?", Mike Spykerman, CEO of Red Earth Software, discusses the legal aspects surrounding email monitoring and advises companies how to monitor employees' emails without violating privacy rights.

NetIQ provides MailMarshal, imMarshal, and WebMarshal for content filtering coupled with antivirus protection (McAfee).

Policy Patrol is a comprehensive email monitoring tool for Exchange server 2000, 5.5 and Lotus Domino, and offers anti-spam, virus checking, keyword filtering, attachment blocking, disclaimers, signatures and many more email management features.

List and links of add-on software for Postfix, including content filtering and antivirus solutions.

Scripts that provide content filtering for incoming email with Qmail.

RAV AntiVirus for MailServers features anti-virus, anti-spam, content filtering and group management.

Integrated with SonicWALL's line of Internet security appliances, the SonicWALL Content Filtering subscription enables organizations such as businesses, schools and libraries to maintain Internet access policies tailored to their specific needs.

SurfControl is a London-based company providing email and web filtering solutions. as well as Internet monitoring and policy management software.

Symantec AntiVirus/Filtering for Domino automatically scans message bodies and file attachments in Notes mail messages and database documents. Supports Windows NT and Windows 2000, with versions also available for Solaris, AIX, OS/400, OS/390, and Linux.

Supports Microsoft's Virus Scanning API 2.0, allowing it to scan both inbound and outbound email, including attachments, before any other process takes place. Provides proactive filtering to automatically block emails based on attachment names, content, or extensions.

Symantec’s Mail-Gear is a policy-based email and attachment scanning and filtering application that supports Windows 2000®, Windows NT®, Sun Solaris®, and Red Hat® Linux®.

Scans attachments for viruses and stops unwanted content like spam using a combination of layered technologies, such as anti-spam heuristics, multiple real-time blacklists (RBL), and support for customized blacklists and whitelists.

Protects HTTP/FTP traffic. Combines list-based techniques with heuristic, context-sensitive analysis for both virus protection and web content filtering.

Tumbleweed provides secure messaging and email policy management solutions geared to the government, financial and healthcare industries.

Websense provides a wide range of solutions including Internet filters, monitoring software, content filtering, tracking, and policy management.

WorkgroupMail provides rules-based policy management and content filtering. Supports Norton, McAfee, Sophos, and any other antivirus product having a command-line interface.