SOUTHFIELD, MI — October 26, 2004 —
Computer Mail Services, Inc., a leading email security and management software provider, today
announced the release of Praetor G2, the second generation of its popular email content
filter product. Praetor G2 implements new features to more effectively identify and filter
spam email messages including Bayesian statistical filtering that can be trained, heuristic analysis
of the message header and body content, and the creation of new weighted wordlists that are used to
score text within the message.
Essentially a comprehensive messaging firewall, Praetor protects any SMTP mail server such as Microsoft
Exchange, Lotus Domino, Novell GroupWise, and Sendmail. The application can be installed on any
Windows machine including, but not limited to, the mail server itself.
Praetor’s default Bayesian token database, accompanying rules, and use of DNS blacklists all combine to give an
out-of-the-box experience that can filter 90%-95% of all spam, with a misclassification rate for good messages
under 0.5%. What’s more, Praetor provides training on site-specific message samples to further
increase spam detection and lower the incidence of false positives.
DEFENSE AGAINST REVERSE NDR ATTACKS
Since CMS’ public warning in June, 2003 that enterprises can be used as unwitting enablers of spam via
Reverse Non-Delivery Reports (Reverse NDRs), more companies are finding themselves to be under this
surreptitious form of indirect mail relay attack. When a mail server is under attack, it becomes
extremely sluggish as it is burdened with the delivery of spam messages in the form of non-delivery
reports. Praetor G2 continues to be
one of the few products that can successfully defend against this attack without creating loopholes for
FLEXIBILITY IN USING DNS BLACKLISTS
Praetor G2 has improved its use of actively maintained DNS servers with their databases of blacklisted IP
addresses via the ability to properly identify the originating IP address of the sending host. Praetor G2
is able to detect such addresses even when the network point of entry is upstream. Furthermore, by
adding DNSBL filtering at the message level, Praetor G2 now logs more information about the message such as
the sender and intended recipient’s address. This capability makes it simpler to identify trading
partners that are temporarily blacklisted so their mail server’s IP address can be added into the bypass list.
POWERFUL REPORTING FEATURES
Praetor G2 adds new traffic analysis and reporting capabilities including a Log Analyzer that, at a glance,
shows overall inbound and outbound filtering activity via counts of messages accepted, quarantined,
redirected and rejected. Even the estimated percentage of incoming spam is shown, and administrators
can obtain a report to show the spam caught by specific filters. Several IP-specific reports also show
sources of Reverse NDR attacks, prohibited attachments, and spam originating from blacklisted mail servers.
FLEXIBLE RULE WIZARD
Praetor’s familiar rule wizard enables administrators to not only combat spam, but also to easily create
new custom rules by simply selecting the message direction, conditions, actions, and exceptions. Using
this wizard, for example, an administrator can create rules to add disclaimers for different purposes, or
archive messages involving a problem employee.
USER ACCESS TO PERSONAL QUARANTINED
To further ease the administrator’s job, Praetor G2 can allow users to access their own quarantined
messages, which are held outside the mail server’s message store. By accessing his/her personal
message summary with a web browser, the user can now call up the details of any quarantined message. If
a message was not quarantined for the proper reason, the user can release and deliver it to their email client
— all without administrator involvement.
PRICING AND AVAILABILITY
Praetor G2 is priced beginning at $350 for 10 users; as the user count grows, the cost per user becomes more
economical due to volume discount pricing.
For more information about Praetor G2 or for a specific pricing quotation, contact CMS by calling 800/883-2674 or
248/352-6700, by sending an electronic mail to firstname.lastname@example.org or by visiting the company’s Web site at
www.cmsconnect.com. Interested parties can also get a price quote immediately by using the online
quoting form at