This Static Spot is open for sponsor

Click Here to Sponsor MCT Eric Post in Full Page

Afrikaans Afrikaans Albanian Albanian Amharic Amharic Arabic Arabic Armenian Armenian Azerbaijani Azerbaijani Basque Basque Belarusian Belarusian Bengali Bengali Bosnian Bosnian Bulgarian Bulgarian Catalan Catalan Cebuano Cebuano Chichewa Chichewa Chinese (Simplified) Chinese (Simplified) Chinese (Traditional) Chinese (Traditional) Corsican Corsican Croatian Croatian Czech Czech Danish Danish Dutch Dutch English English Esperanto Esperanto Estonian Estonian Filipino Filipino Finnish Finnish French French Frisian Frisian Galician Galician Georgian Georgian German German Greek Greek Gujarati Gujarati Haitian Creole Haitian Creole Hausa Hausa Hawaiian Hawaiian Hebrew Hebrew Hindi Hindi Hmong Hmong Hungarian Hungarian Icelandic Icelandic Igbo Igbo Indonesian Indonesian Irish Irish Italian Italian Japanese Japanese Javanese Javanese Kannada Kannada Kazakh Kazakh Khmer Khmer Korean Korean Kurdish (Kurmanji) Kurdish (Kurmanji) Kyrgyz Kyrgyz Lao Lao Latin Latin Latvian Latvian Lithuanian Lithuanian Luxembourgish Luxembourgish Macedonian Macedonian Malagasy Malagasy Malay Malay Malayalam Malayalam Maltese Maltese Maori Maori Marathi Marathi Mongolian Mongolian Myanmar (Burmese) Myanmar (Burmese) Nepali Nepali Norwegian Norwegian Pashto Pashto Persian Persian Polish Polish Portuguese Portuguese Punjabi Punjabi Romanian Romanian Russian Russian Samoan Samoan Scottish Gaelic Scottish Gaelic Serbian Serbian Sesotho Sesotho Shona Shona Sindhi Sindhi Sinhala Sinhala Slovak Slovak Slovenian Slovenian Somali Somali Spanish Spanish Sundanese Sundanese Swahili Swahili Swedish Swedish Tajik Tajik Tamil Tamil Telugu Telugu Thai Thai Turkish Turkish Ukrainian Ukrainian Urdu Urdu Uzbek Uzbek Vietnamese Vietnamese Welsh Welsh Xhosa Xhosa Yiddish Yiddish Yoruba Yoruba Zulu Zulu

 

 

Article Navigation

Back To Main Page


 

Click Here for more articles

Google
Anti Spam at the Enterprise Level
by: Richard Keir
Copyright 2005 Richard Keir

Every one of us knows how spam impacts us. Every day we either get a ton of spam - or if we're fairly well protected by spam filters - only a few pieces.

Like a large number of people, I don't use any spam filters. Ah. You think I'm insane. But wait. My problem is that I get a lot of email from marketing types which I want to receive. And the spam filtering software is not very sensitive to my needs. Even white-listing doesn't always work. So, I prefer to get all that spam and just delete it.

Now this solution can work for me despite the time it takes to delete my daily overdose of spam. However, at the enterprise level, it's a whole different story. If you have a relatively large internal network with even a modest number of email users, you're looking at a major problem. And the more users you have, the worse the problem is.

Sure, you can put up software on the mail server. Works, kind of. But pretty soon you may find you need to upgrade the mail server. And that's after you already put it on a stand-alone machine.

Rather than continuing to buy ever more expensive software to run on a machine that keeps needing to be upgraded, you might want to think about a dedicated anti spam appliance.

To give you some idea of what's possible let's take a look at Barracuda Networks dedicated anti spam appliance. All you need to do is put this baby in front of your mail server. I say baby, advisedly because this one will learn by doing and by training provided by your users.

Dean Drako, CEO of Barracuda Networks said, "Bayesian filtering is still one of the most accurate defenses against spam. The new plug-ins allow users to directly train the Bayesian filter, making the Barracuda Spam Firewall even more accurate based on the users individual email preferences. Viruses and other threats can infect the network quickly if they are not stopped at the network edge. With Intent Analysis our customers have an advantage over these threats because the Barracuda Spam Firewall is able to block them real time. Consequently we have consistently been a first responder when some of the most malicious virus attacks have hit, saving our customers from potentially devastating damage to their networks."

This is one beautiful little machine. A Barracuda Spam Firewall can support from 1,000 to 30,000 active users. It can usually be installed in less than five minutes and receives automatic hourly updates for new forms of spam and viruses. It has a 10 layer defense system beyond the use of open source anti spam and anti virus solutions: denial of service and security protection, IP block list, rate control, virus check with archive decompression, proprietary virus check, user specified rules, spam fingerprint check, Intent Analysis, spam rule-based scoring, and Bayesian analysis. Plus it also does both inbound and outbound email filtering with the inclusion of sophisticated outbound email filtering techniques (just in case you've got a spam zombie on board or somebody's got an infected PC).

However, it isn't exactly cheap. Still, when you consider the time, bandwidth, user frustration and potential hardware upgrade costs, the price may look a lot more reasonable. You can check it out at http://www.barracudanetworks.com/

If you are in the market for an anti-spam appliance, the Barracuda Spam Firewall isn't your only choice. The impact of spam on internet businesses - even those who primarily use it for just email - is so great that a simple search for "anti spam appliance" will find you a number of alternatives to examine. Even McAfee is getting into the anti spam hardware game.

I'm hoping that it won't be too long before I can pick up a Bayesian multi-level anti spam, anti virus firewall appliance for my home PC that keeps me safe and cuts my need to delete without deep-sixing the email I want or costing me more than I can afford. I suspect it's on the way.


About the author:
Richard writes in a variety of areas involving eBusiness and the internet. For more on spam visit http://anti-spam.werkz.organd for general eCommerce go to http://building-ecommerce-websites.com


Circulated by Article Emporium

 



©2005 - All Rights Reserved

This Static Spot is open for sponsor

Spam Blocking Information

Read Articles:

11 Proven Methods For Maximizing Your...
What Is Spyware - An Overview Of Spy ...
The 10 Most Important Questions To As...
9 Steps to Protect your MS Windows Sy...
The Top Twelve Threats No Computer Us...
Tops in toolbars?
Does Your PC Have Worms?
So, Is It Possible To Earn Free Money...
How to protect yourself from online a...
The email blues
Tiscali Broadband
Anatomy Of A Reciprocal Linking Campaign
Do I Need an RSS Feed?
Banned By Google And Back Again.
My Top 10 Favorite Internet Tools
5 Good Reasons For Using Yahoogroups ...
What’s with all this fraud and theft ...
Predicting The Future Online
Amazing Explosive Ways To Turbo-Boost...
Are You A Spam Zombie?
What are the best strategies or ideas...
5 Linking Strategies that Work
The Money Keyword List - Superchrage ...
Honesty and the Internet
Simple Identity Theft Prevention
Niche Software Steals Microsoft's Thu...
Web Summary Authoring
The End of Spyware?
7 Great Tips on Driving Targeted Traf...
Your computer is infected with Spywar...
Increase in Customer Sales = Increase...
How to Avoid Problems and Errors of S...
Why offline advertising is so importa...
Keeping your pc healthy at little or ...
Finding An Internet Access Provider T...
5 Ways To Drive Visitors Away From Yo...
Internet ISP's
Spyware: What It Is and How to Combat...
Top 10 Tips for WinXP Users
How to Choose a Web Hosting Company?
Take back control of your inbox. Elim...
Malware: Computing's Dirty Dozen
Money Doubler Madness
M-Commerce Twice the Cash Value of E-...
Understanding the power of viral mark...
How To Use Spyware Elimination Software
Are Surf For Money Ventures For You?
BT Internet Broadband
Search Engine Placement - Most Overlo...
Simple Search Engine Optimization
Adware And The Case Against Bundled S...
An quick guide in Payment Processing ...
What is the Robot Text File?
Search Engine Optimization History
Reclaim Your PC from the Internet Spies
SEO And The Outsourcing Of Inbound Li...
Top Paying Keywords: How to Increase ...
Creating Online Communities
Professional Traffic Building Tips
Internet Scams 101 -- Attacking You T...
Uncle Sam Cracks Down Online!
What are doorway pages?
IT Support Services in London
5 Tips For An Unbreakable Password
Building Links To Your Site
Spyware Protection - The Only Way To ...
Registry Cleaner: Protection for Your PC
Shocking Facts about Updating Your PC...
Buying a laptop that you can use as a...
What To Look For In A Web Host

More Article Pages 1 - 2 - 3

Winning the War On Spam

For years I didn't worry much about spam.

But lately it's got out of control. Over half of my email is now spam, and it was growing by the week - until I took action.

This article shows you some strategies for winning the war on spam.

------------------------------------------------

How Do They Get Your Address?

------------------------------------------------

In the old days, spammers got their addresses mainly from Newsgroups - if you didn't post to Newsgroups, you were reasonably safe. But they're now using a much more efficient method to build their lists - email harvesters.

Email harvesters are robots that roam the Internet collecting email addresses from web pages. Examples are EmailSiphon, Cherry Picker, Web Weasel, Web Bandit and Email Wolf, to name just a few.

How can you protect yourself from email harvesters?

By 'munging' (mung = 'mash until no good') or cloaking your email address.

There are many ways of munging your address - the easiest technique is to use ASCII code for the punctuation in your email address (instead of symbols).

For the colon after mailto use : and for the @ symbol use @ and for the period use . . With this method, your email address would become:

mailto:yourname@yourdomain.com

but it will display as:

mailto:yourname@yourdomain.com

Your email address will appear exactly as it did before, and it will still be 'clickable', but email harvesters will ignore it and move on.

There are also JavaScript's that you can insert into your web page that will make your email address visible to humans but invisible to harvesting programs. Here's one that works very well: http://pointlessprocess.com/JavaScripts/anti-spam.htm

-----------------------------

How To Fight Spam

-----------------------------

The most important thing is never, ever, reply to spam.

Most spam contains an innocent-looking 'remove me' email address. Do not use it. Here's why:

Spammers typically buy a CD containing a million or so email addresses, but they have no idea how many of those addresses are active. So before beginning their marketing campaign in earnest, they send out a 'test message' to the entire list.

The test message contains an email address for removing yourself. When you reply to that address, it confirms to the spammer that your address is active and therefore worth spamming.

Worse still, the spammer may be distilling from that CD a list of confirmed active addresses that he will then sell to another spammer.

The key to dealing with spam is to report it to a 3rd party: (1) the affiliate program that the spammer is advertising, (2) the spammer's web host, or (3) the ISP the spammer used to connect to the Internet.

When you report spam to a 3rd party, remember to be polite - they didn't send the spam and they're probably just as anti-spam as you are.

(1) Reporting to Affiliate Programs

Many spammers are affiliates advertising someone else's products or services. So look for a website address that contains an affiliate link, something like this: www.affiliateprogramdomain/841526

Then just send an email to the affiliate program (abuse@affiliateprogramdomain.com), informing them that you are receiving spam from one of their affiliates.

Most affiliate programs have zero tolerance for spamming and will remove an affiliate spammer without warning.

Now, affiliate spammers don't want you to see their affiliate link, so many of them send their email as HTML. All you see in the message are the words 'Click Here and Order Now'.

But in your browser just click on 'View Source Code' and search for the letters 'http'. That will take you to the spammer's affiliate link.

(2) Reporting to Web Hosts

If the spam doesn't contain an affiliate link, it's likely that it is coming from the owner of the domain name. In that case you'll have to report it to the spammer's web host or their ISP.

To make a report to the spammer's web host just go to Whois, the directory of registered domain names: http://www.netsol.com/cgi-bin/whois/whois

Type in the spammer's domain (the website address that appears in the spam) together with the extension (.com, .org, .net etc).

The host for that domain will usually be listed as the Technical Contact in the Whois record and there will be an email address for contacting them.

(3) Reporting to ISPs

To report a spammer to his Internet Service Provider, you'll have to look at the spam's 'extended headers'.

Extended headers show the servers that the message passed through in order to get to you. The instructions for viewing extended headers will vary depending on what email client you are using.

=> In Pegasus Mail, open the offending message and then

right-click and choose 'Show raw message data'.

=> In Eudora Light, click on 'Tools' in the top menu

bar, and then 'Options', and then select the

checkbox option that says 'Show all headers (even

the ugly ones)' and click OK.

=> In Outlook Express, open the offending message,

select 'Properties' from the File menu and then

click the 'Details' tab.

Reading and understanding extended headers is quite a detailed subject. Here's an excellent free tutorial on how to decipher extended headers: http://www.doughnut.demon.co.uk/SpamTracking101.html

As an alternative to these reporting techniques, you could use a web-based spam reporting service such as SpamCop (www.spamcop.net). SpamCop deciphers the spam's message headers and traces the mail back to its source.

Wishing you every success in the fight against spam!

------------------------------------------------------------
Michael Southon has been writing for the Internet for over 3
years. He has shown hundreds of webmasters how to use this
simple technique to build a successful online business. Click
here to find out more: http://ezine-writer.com/
------------------------------------------------------------


 



©2005 - All Rights Reserved

JV Blogs Visit free hit counter