Firewall Series

Floods of Ineffective E-mails Cause Inestimable Losses to Businesses and Individuals

Product Catagory

Receiving large quantities of junk email is probably a common, modern vexation. Among these email are annoying advertisement and mailings that contain viruses to attack your computer. Have you ever carefully calculated how much time you have spent judging the meaning of these letters? What’s more, while you read through each letter, you are at risk of being attacked by viruses.

It’s Time to Terminate Junk Mail!

Junk mail or virus mails have caused you losses in staff productivity, work efficiency, and corporate image, occupied outward-linking Internet bandwidth and space in your storage facilities, and put you under the risk of virus attack. Why should you be willing to put up with it any longer?

Problems Facing the Internet Control Staff	Best Choice – Barracuda Hardware Solution
How to Block Junk Mail How to formulate Junk Mail Blocking Policies How to Evaluate Results of Such Policies Is it Easy to Manage Setups Do Functions Meet Requirements Doest it Update Fast Is It Easy to Introduce Is the System Stable Enough Is the Efficacy Sufficient	Spam Gateway Concisely Structured Plug and Ply and Takes Only 5-10 min to Install Easily Maintained Firmware is Easily Updated Stable Efficacy Effectively Reduces the Burden on E-Mail Server Protects E-Mail Server Compatible with E-Mail Servers on Various Platforms No Need to Change User Setup in E-Mail Server

Barracuda Filtering Mechanism
Main Methods of Mail Filtering

• Domain Name Blocking
  Blocks mail from the source domains or IPs on the RBL, ORBL, and Barracuda lists.
• Blacklist and Whitelist Filtering
  Conducts blacklist and whitelist filtering on individual mail senders or those sending mail from your designated domains.
• Key Words Scan
  Scans and compares key words in the mail subject or text to determine if the mail should be blocked.
• Mail Header Credibility Check
  Filters out suspicious mail by checking mail header, such as whether the identity of the mail sender is true.
• Attachment File Name Blocking
  Scans compressed files and blocks extensions of attached files.
• Flow Control
  Prevents a continuous inflow of large quantity of mail and automatically postpone response time to effectively prevent DoS attacks.
• Repeated Detection and Defense against Junk Mail
  Monitors, blocks, and reports continuously repeated and suspicious mail.
• Fingerprint Check
  Barracuda SPAM authentication center will define the fingerprint code for each junk letter in accordance with its content and structure and filter away those with the same structure in the first place.
• Bayesian Algorithms
  Defines Bayesian Algorithms for managers and individuals by giving different letters different scores (on a scale that ranges from -4.5 to +5.5) by their influence according to the database samples of environment definitions so that the accuracy of mail judgment complies with the requirements of the environment.
• Rule-based Algorithms
  Gives different scores to different junk letters using rules in accordance with mail characteristics, and then added up the scores each letter is given by each rules. Managers can define different ways of handling mail simply by adjusting the total scores.

Establishment Benefits

• Mail Classification and History Records
• Effectively prevents virus and blocks ad mail
• Saves overall bandwidth and storage space
• Saves E-Mail Server CPU resources
• Improves E-Mail Server security
• Easy to manage and allows the user to define filtering conditions freely
• Improves work efficiency and productivity

Product Functions

• Makes a list of weighted-scoring items for junk mail and evaluates listed items
• Marks, isolates, and blocks by attributes of source mail
• Scans virus in attached compressed files
• Bayesian automatic learning function
• Fingerprint Scanning Technique
• Automatic upgrade of Spam and Virus Definitions
• Detailed record of mail
• Support E-Mail Server on various platforms
• Supports Lightweight Directory Access Protocol (LDAP) and MS speed-up function
• Perfect isolation mechanism for personal mail
• Self-defined blacklist and whitelist for mail

Isolation Letter of Advice

• Isolation Letter of Advice sent on a daily or weekly basis
• Can directly send the mail out, list it on the whitelist, and delete it.
• Can link it to the personal management interface in the facilities through the encrypted link on letters of advice

User Interface

• Master list of isolated mail
• Can directly sent the mail out, list it on the whitelist, and delete it.
• Provides search conditions for isolated mail
• Provide personal Bayesian  Algorithms database
• User blacklist and whitelist
• Whether or not to activate isolation area
• How often are letters of advice sent (on a daily or weekly basis)
• Whether to use mail filtering
• Changes to Logon code

Product Features

• Standalone 1U rack hardware design, and plug and play design for easy installation
• No need to install any software, high in stability and easy to manage.
• Embedded Dos Attack Blocking
• Embedded dual layers of virus protection scans save you the trouble of buying additional virus scanning configuations.
• Supports multiple domains and E-Mail Servers
• Intuitive web management interfaces and graphic report formats.
• Automatic search for E-Mail accounts that save MIS staff members the trouble of adding new ones
• Provides MS-Outlook Plug-In programs to support the Bayesian automatic learning functions for users
• Allows self-definition of filtering conditions for each domain.

Product Edges

• Focus SPAM filtering techniques with a Global layout
• Monitoring mechanism on global mail and daily update of global junk mail information
• The product has the most comprehensive and most advanced SPAM prevention techniques and has integrated them as one
• Awarded a great number of major international awards
• Large space for expansion and supports for cluster architecture to upgrade the overall efficacy
• Super high efficacy e.g. A600 can handle 25 million letters every day.
• All-encompassing product lineup that meet the requirements of various businesses and ISPs.
• Reasonable prices; Do not charge on the basis of mail account amount.
• Multiple language operation interfaces

For further information on the product, contact Mr. Tsou at Tel: +886-2-2557-2567 Extn. 795.