Praetor^®

• Bayesian statistical analysis to compute the probability that a message is spam

• Heuristic analysis of message header and body content to detect common spam techniques

• Site-specific whitelists and blacklists

• Multiple DNS blacklist servers with bypass option

• Additional default rules and templates developed after CMS’ study of thousands of spam messages

• Scan for leaks of proprietary information

• Detect profanity or unacceptable language

• Add the same or different disclaimers based on certain conditions

• Create automatic replies

• Archive all or specific messages

• Send notices matching specific criteria

MESSAGE FILTERS

• Bayesian statistical analysis using default token database -- Trainable with your additional samples

• Heuristic analysis for common spam techniques: invisible ink, tiny text, interspersed HTML comments, obfuscated URLs, sales offers, fraud, etc.

• Local whitelists and blacklists of sender addresses, domains and IP addresses

• Query multiple DNS blacklist servers with bypass option and retain message summary information

• Successfully defend against “Reverse NDR” (indirect relay) attacks

• Reject banned and quarantine suspicious attachments

• Score messages according to weighted word lists based on your own phrases

• Allow messages from subscribed listservers

• Delete email to former employees

• Use pre-defined filter templates with keyword lists for pornography, explicit language, confidential data, etc.

• Add a common disclaimer or different disclaimers based on your criteria

• Archive all incoming/outgoing messages or only those based upon your criteria

MESSAGE MANAGEMENT OPTIONS

Praetor conditional rules must contain one of these required actions to process the email:

• Accept

• Reject

• Quarantine

• Redirect

Optional actions include:

• Append/Prepend disclaimers to a message

• Return to sender

• Send notification to sender, recipient, Administrator or any email address

• Forward a copy of the message

• Add message header fields useful in passing hints to client-side filters

ADMINISTRATION FEATURES

• Rule wizard permits construction of administrator-defined custom inbound or outbound rules

• Tool to import/export Praetor lists

• Administrator Log Viewer to examine and act on quarantined messages: accept, reject, redirect or return to sender, train the Bayesian analyzer

• Message quarantine area is located off-server

• Browser-based Personal Log Viewer allows users to review inbound messages and release any quarantined mail (choose from several authentication methods: Windows, LDAP, or SQL table)

• Log Analyzer tool to generate reports showing email traffic statistics such as:

• Source of “Reverse NDR” attacks for blacklisting

• Source of DNS blacklisted rejections

• Source of quarantined email

• Heaviest users of email

• Domains sending/receiving most email

REQUIREMENTS

• Any SMTP Server

• Machine with Pentium IV or Xeon CPU operating at 2GHz or faster, 512MB RAM or more, and at least 5GB free disk space

• Windows 2000 or 2003 Server, Windows 2000 or XP Professional Edition

• Microsoft .NET Framework 1.1 or later

• IIS SMTP and Web Servers

• Microsoft SQL Server or Desktop Edition (MSDE)

• Microsoft Visual Basic Script DLL version 5.6 or later

• Dedicated connection to the Internet