Spam filters fight the growing problem of spam which can be defined as unwanted or unsolicited emails. Here you will find information about tools and techniques for organizations with centrally-administered email systems, though some of the methods described may be appropriate for individuals in establishing workable spam filters.

Spam Filters - Background

Spam filters are software systems or services which check the address information from incoming emails as well and read its contents looking for text patterns and keywords stored in the “permit” and  “deny” lists of spam filters.

Spam Filters - Increase Business Productivity

Administrators of organizational email systems face challenges in providing a high level of availability of email when they look at the task of implementing spam filters. In an effort to keep out spam, spam filters must be continually adjusted so they do not block legitimate business emails, or let in new types of spam. Unfortunately legitimate emails may look like spam in that they may come from individual email accounts, and may use casual or familiar terminology. The use of handheld email systems may also increase the number of legitimate emails containing spelling errors, abbreviations or proper names which may be quarantined by spam filters.

Because most organizations don’t want to block legitimate email from customers and partners, quarantined messages may have to be inspected by humans, increasing expenses and headcount.

Spam filters alone cannot be expected to solve the spam problem completely. Staff should understand the importance of:

• Never responding to spam emails, especially those offering links to stop sending the messages
• Disregarding “chain emails”
• Using the bcc: feature to hide email information sent to a number of users
• Contacting email administrators immediately upon discovery of new instances of spam. This information can then be used to purge undelivered messages.

spam filters must be modified to accommodate new kinds of spam – a time-consuming ongoing process.  Modern organizations are turning to managed email spam filter services like MX Logic to provide effective solutions to the problem of providing comprehensive email protection services, as well as simply administering their spam filters.

In the case of MX Logic, by pointing your Mail Exchange (MX) record to MX Logic’s SecureMX, MX Logic’s Email Defense Service screens email messages as they are received.  All incoming messages are processed according to customer settings. Messages and attachments can be scanned for many types of fraud like phishing, for email trojans and worms in addition to spam. MX Logic also protects against email directory harvest attacks, denial of service attacks, channel flooding and mail bombs - attacks that can debilitate most email systems. The remaining emails are then forwarded to your incoming email system. But the protection does not stop there. Buttons may be added to your Outlook software allowing end-users to identify malicious messages and send spam and threat information to our threat center for instantaneous evaluation by MX Logic’s security personnel.

Spam Filters – Services from MX Logic

The award-winning MX Logic Email Defense Service, offers customers enterprise-grade service and performance, without requiring enterprise-level commitment, complexity and cost.

• MX Logic Email Defense Service is easily activated, used and administered
• MX Logic provides service packages designed to offer organizations updated spam filters, virus, trojan and comprehensive email protection while meeting budget requirements

The MX Logic Email Defense Service is highly effective, effortless on your part, and can be activated rapidly. It requires no initial capital outlay or complex system integration. It is flexible and easy to administer, migrate to, and requires no ongoing maintenance effort by your personnel – we do all that for you.

Related links from MX Logic:

• MX Logic Email Defense Service (PDF)
• MX Logic® Email Defense Service Product Brief
• MX Logic/VeriTest Overview (PDF)
• MX Logic Data & Fact Sheets
• MX Logic White Papers
• MX Logic Frequently Asked Questions
• Email Spam Filters
• Spam Filters
• Free Spam Filters

To find out more, follow this link for a comprehensive description of MX Logic’s Email Defense Service including our Spam filters.

Spam Filters – Additional Links

For helpful additional information on other spam filters click one of the external links below:

Second-Generation Spam Solutions by Kaitlin Duck Sherwood -
http://www.overcomeemailoverload.com/advice/AntiSpamTools.php

Spam techniques (e-mail) From Wikipedia, the free encyclopedia -
http://en.wikipedia.org/wiki/Spam_techniques_(e-mail)

Ask Ars: The best Spam solutions for Windows - Rian "hanser" Stockbower -
http://arstechnica.com/ask-ars/2003/Spam/index.html

Spam Filters - What The World Searches For

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Spam Filter Questions?

If you still have questions about Spam Filters , please contact us at 1.877.MXLOGIC (1.877.695.6442), via email at info@mxlogic.com, or submit an online inquiry.