Email Filtering Exchange

Email Filtering Exchange

Email Filtering Exchange As many might know Microsoft’s original intention was to make the IMF add-on available to SA customers only, but fortunately they changed plans just before the add-on was released, and instead decided to make it available for anyone to download from their website.
IMF should be installed on your organization's Exchange Gateway Servers (the servers accepting Internet e-mail messages and forwards them to the appropriate mailbox server) or on the Exchange bridgehead servers behind potential non-Microsoft e-mail Servers. Smaller organizations (without an Exchange Gateway Server) will typically install exchange server spam filter directly on the Exchange mailbox server itself.

Note:
Be aware the IMF add-on can only be installed on Exchange 2003 Standard or Enterprise Servers, so if your organization still uses Exchange 2000, you must upgrade to Exchange 2003 in order to deploy IMF. Also bear in mind IMF isn’t supported on Exchange 2003 Cluster Servers.

IMF is based on a patented machine learning technology originally developed by Microsoft Research. The technology behind IMF is SmartScreen-based, which means the add-on is able to distinguish between legitimate e-mail messages and unsolicited commercial e-mail or other spam. SmartScreen tracks over 500,000 e-mail characteristics based on data from hundreds of thousands of MSN Hotmail subscribers who volunteered to classify millions of e-mail messages as legitimate or as spam.

As many might know Outlook 2003’s Junk E-mail filter is also based on the SmartScreen technology, and to make the most of IMF, it’s recommended to use Outlook 2003 on your clients. But if your clients run Outlook 2002 or earlier, don’t worry if this is the case you can set the filtering rules via Outlook Web Access (OWA) 2003 instead.

When IMF is installed a new tab is added to the System Manager – the Intelligent Message filter tab which can be found by taking Properties of Message Delivery under Global Settings (see figure 3). In addition a new Intelligent Message Filtering node is added under Protocols > SMTP, see Figure 1 and 2 (this is where you enable IMF).


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exchange server spam filter

With the number of spam filtering solutions increasing each week it's getting tougher for consumers to make informed choices in their purchases.   There are 3 basic types of spam filters:     Integrated   Standalone   Online     We'll look at each type of spam filter and at the end you should be able to decide what spam filter is right for you.   Integrated spam filters   This type of spam filtering software is the most common. Once installed it sits "on top" of your existing email software and installs a new set of buttons into your email software. In future when you collect email you'll see options for marking email as Spam, marking the email as Not Spam, Bounce the email back to sender, etc. The description and position of these buttons varies from one product to the next but their purpose remains the same.   Most integrated spam filters automatically place suspected junk email into a separate folder on your PC for you to review or delete later on.   The newer integrated spam filters are also "intelligent". They can basically learn the difference between what is spam and what is not and delete the junk email you don't want.   The most popular integrated spam filters are:     iHate Spam   Spambully   Spam Inspector     Integrated spam filters are most popular amongst people who want a one click solution to collecting their personal email and filtering junk email at the same time.   Advantages:   One click solution.   Disadvantages:   Software specific. Some work with Outlook and Outlook Express only.   Standalone spam filters   These are less common than their integarted counterparts but that doesn't make them any less useful. A standalone spam filter is basically a separate piece of software installed on your PC that you use to check your email for spam.   Standalone filters have the big advantage of being able to preview your email on the mail server before it's downloaded to your PC. This one single feature has the huge benefit of allowing you to just download the email that you want as opposed to downloading all of your email, including the spam, and then sorting through it.   Using a standalone spam filter is a little more work simply because it's a separate piece of software that you have to run before you open up your email software. Most standalone filters do allow you to configure them so that your standard email application is opened once you've chosen what spam to filter. This suits some people and not others.   The most popular standalone spam filter is:   Mailwasher Pro   Advantages:   Doesn't rely on specific email applications to work properly.   Disadvantages:   Two step process. Load standalone filter and then your email application.   Online spam filters   There are really two types of online spam filters. One is for business use and one is for home use. A typical example of a business type product is iHate Spam server edition where the software deletes junk email directly from the mail server before the end user even sees it. Large companies employ this type of technology.   Home users will be using Spam Arrest or similar. Spam Arrest offers an inventive solution to spam whereby any email sent to the users account has a challenge request sent back to it which the sender must authenticate. The automatic junk email software used by spammers can't currently deal with this type of response. Any failure to authenticate the challenge email results in the junk email being left to die in cyberspace. A user is authenticated with Spam Arrest only once for security just to make sure the software doesn't become a nuisance.   The most popular online spam filter is:   Spam Arrest   Advantages:   Users are guaranteed to only receive the email that they want or requested.   Disadvantages:   Any techncial problems with the Spam Arrest server and you have no defense against spam.   Now you've seen what spam filtering options are available to you just ask yourself which one suits you most. If you're still not sure drop by http://www.spam-site.com and check out our product reviews - we have something for everyone.               About The Author       Niall Roche is the content author and owner of http://www.spam-site.com niall@spam-site.com

With the number of spam filtering solutions increasing each week it's getting tougher for consumers to make informed choices in their purchases.

There are 3 basic types of spam filters:



Integrated

Standalone

Online


We'll look at each type of spam filter and at the end you should be able to decide what spam filter is right for you.


Integrated spam filters


This type of spam filtering software is the most common. Once installed it sits "on top" of your existing email software and installs a new set of buttons into your email software. In future when you collect email you'll see options for marking email as Spam, marking the email as Not Spam, Bounce the email back to sender, etc. The description and position of these buttons varies from one product to the next but their purpose remains the same.


Most integrated spam filters automatically place suspected junk email into a separate folder on your PC for you to review or delete later on.


The newer integrated spam filters are also "intelligent". They can basically learn the difference between what is spam and what is not and delete the junk email you don't want.


The most popular integrated spam filters are:



iHate Spam

Spambully

Spam Inspector


Integrated spam filters are most popular amongst people who want a one click solution to collecting their personal email and filtering junk email at the same time.


Advantages:


One click solution.


Disadvantages:


Software specific. Some work with Outlook and Outlook Express only.


Standalone spam filters


These are less common than their integarted counterparts but that doesn't make them any less useful. A standalone spam filter is basically a separate piece of software installed on your PC that you use to check your email for spam.


Standalone filters have the big advantage of being able to preview your email on the mail server before it's downloaded to your PC. This one single feature has the huge benefit of allowing you to just download the email that you want as opposed to downloading all of your email, including the spam, and then sorting through it.


Using a standalone spam filter is a little more work simply because it's a separate piece of software that you have to run before you open up your email software. Most standalone filters do allow you to configure them so that your standard email application is opened once you've chosen what spam to filter. This suits some people and not others.


The most popular standalone spam filter is:


Mailwasher Pro


Advantages:


Doesn't rely on specific email applications to work properly.


Disadvantages:


Two step process. Load standalone filter and then your email application.


Online spam filters


There are really two types of online spam filters. One is for business use and one is for home use. A typical example of a business type product is iHate Spam server edition where the software deletes junk email directly from the mail server before the end user even sees it. Large companies employ this type of technology.


Home users will be using Spam Arrest or similar. Spam Arrest offers an inventive solution to spam whereby any email sent to the users account has a challenge request sent back to it which the sender must authenticate. The automatic junk email software used by spammers can't currently deal with this type of response. Any failure to authenticate the challenge email results in the junk email being left to die in cyberspace. A user is authenticated with Spam Arrest only once for security just to make sure the software doesn't become a nuisance.


The most popular online spam filter is:


Spam Arrest


Advantages:


Users are guaranteed to only receive the email that they want or requested.


Disadvantages:


Any techncial problems with the Spam Arrest server and you have no defense against spam.


Now you've seen what spam filtering options are available to you just ask yourself which one suits you most. If you're still not sure drop by http://www.spam-site.com and check out our product reviews - we have something for everyone.






About The Author




Niall Roche is the content author and owner of http://www.spam-site.com


niall@spam-site.com









 

 

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exchange mail filtering

Many different types of organizations use spam as a vital part of the work. A sampling of these include:

• Marketing: finding groups of customers with similar behavior given a large database of customer data containing their properties and past buying records;
• Biology: classification of plants and animals given their features;
• Libraries: book ordering;
• Insurance: identifying groups of motor insurance policy holders with a high average claim cost; identifying frauds;
• City-planning: identifying groups of houses according to their house type, value and geographical location;
• Earthquake studies: spam observed earthquake epicenters to identify dangerous zones;
• WWW: document classification; spam weblog data to discover groups of similar access patterns.

 

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