GFI MailEssentials, 100 mailboxes ME100 User Manual

Anti-spam, anti-phishing and email management

Every day businesses receive thousands of fraudulent, inappropriate and offensive emails. Deleting spam is time
consuming, email server performance is affected and the security of your network is at risk from malicious emails.
With over 60 awards to its name, 70,000 satisfied customers and unbeatable price-performance, GFI MailEssentials
for Exchange/ SMTP is a best-of-breed anti-spam package that is easy to set up, that captures over 98% of spam
and that also eliminates the need to install and update anti-spam software on each desktop.

GFI MailEssentials uses various techniques such as Bayesian filtering to achieve such a high spam detection
rate whilst its white-listing technology guarantees what is possibly the lowest level of false positives in the industry.
This technology enables the software to automatically adapt to your email environment and constantly tune and
improve spam detection.

GFI MailEssentials also detects and blocks phishing emails, and stops the latest in spam threats, such as
attachment spam. GFI MailEssentials also adds email management tools to your mail server: disclaimers, mail
monitoring, Internet mail reporting, list server, server-based auto replies and POP3 downloading.

Bayesian filtering is widely acknowledged by leading experts
and publications as the best way to catch spam. A Bayesian

GFI MailEssentials is server-based and installs on the mail
server or at the Gateway, eliminating the deployment and

filter uses a mathematical approach based on known spam

administration hassle of desktop-based anti-spam and

and ham (valid email). This gives it a tremendous advantage

anti-phishing products. Desktop-based software involves

over other spam solutions that just check for keywords or rely

training your users to create anti-spam rule sets, and

on downloading signatures of known spam. GFI’s Bayesian

subsequently users have to spend time updating these rules.

filter uses an advanced mathematical formula and a dataset

Besides, this system does not prevent your server message
stores from filling up with spam.

which is ‘custom-created’ for your installation: The spam data
is continuously updated by GFI and is automatically
downloaded by GFI MailEssentials, whereas the ham data is
automatically collected from your own outbound mail. This
means that the Bayesian filter is constantly learning new spam
tricks, and spammers cannot circumvent the dataset used.
This results in a 98+% spam detection rate, after the required

two-week learning period. In short, Bayesian filtering has the
following advantages:

· Support for the industry leading messaging platforms

including Microsoft Exchange 2000, 2003, 2007 and
Lotus Domino

· Looks at the whole spam message, not just keywords or

known spam signatures

· Learns from your outbound email (ham) and therefore greatly

reduces false positives

· Adapts itself over time by learning about new spam and new

valid email

· Dataset is unique to your company, making it impossible to

bypass

· Multilingual and international.

· Highest spam detection rate (98%) because of its

Bayesian filtering technology

· Lowest false positives through its patent pending

auto whitelist feature

· Server-based install, no client software required

· Voted MSExchange.org Readers’ Choice Award

Winner in the Anti-Spam Category four times

GFI MailEssentials can download updates to the Bayesian
spam profile database from the GFI site, ensuring that it

· #1 server anti-spam solution at unbeatable pricing

– over 70,000 installations!

recognizes the latest spam and spamming techniques. GFI
maintains the spam profile database by working with a number
of spam collection organizations that continually supply spam
samples.