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Thursday, July 3, 2008

Exchange Server Spam Filter


How to Choose Anti-Spam Filter?

The damage spam brings you is huge: loss of time, bandwidth and money, risk to delete a legitimate message together with junk emails. So, an anti-spam filter is not a whim but a necessity for almost all PC users who actively use email.

What criteria should you follow to choose the right spam filtering program? What capabilities must an anti-spam tool have to filter and cut off spam mail in most effective way?

Here are the main features a good anti-spam software must have to block spam effectively:

1) it should be a standalone spam filtering tool, which checks all incoming emails on the server, detects and deletes spam messages.

2) deletion of spam without receiving it in your inbox. This way you won't download all the superfluous kilobytes into your inbox and you won't see annoying spam mail.

3) powerful antispam filters built in one program that analyze the message from "outside" and "inside": message header, message body, and message source. Flexible whitelist and blacklist easy to edit and update are also very useful as they help save much time when filtering emails. Good anti-spam software must also have the Bayesian filter in its arsenal of spam filtering tools.

4) easy and safe method to preview emails marked as spam. Inherent in antispam technology is the fact that there will be false positives and false negatives, i.e., email can be flagged as spam even though it is not actually spam and vice versa.

5) flexible spam filtering. Spam emails should be moved to a separate folder. A good spam filtering software should provide the ability to recover an email if it was accidentally marked as spam and trashed.

Simply put, an anti-spam program must be a standalone, easy-to-use software supplied with powerful anti-spam filters able to be adjusted by every user for his personal needs. Now with all that said above you can choose the right anti-spam software among all spam filtering programs available on the Internet.

Author is a technical expert associated with development of computer software like Advanced Administrative Tools, Advanced Email Verifier, G-Lock EasyMail, Anti-spam software More information can be found at Anti Spam Filter Resources.



How Do Anti Spam Solutions Work?

We have all suffered from these annoying dangerous spam emails. Most of us still do. There are excellent anti spam solutions in the market, there is no reason to tolerate this no more.

To understand the solution we must first understand the problem. So, what is this spam email? Spam is unsolicited, unwanted, irrelevant or inappropriate email. Spam email is mostly used for commercial purposes. Spam emails are also known as “junk mails”.

So, why do people are constantly searching for the best spam blockers? Why do the market of anti spam solution rolls billions of dollars a year? Well, these spam emails are time consuming and are annoying. But, more than that, they cost a lot of money. Why? First, because time is money. But more than that, billions of spam emails are loading lots of unnecessary data over the servers.

Therefore, big software companies constantly develop anti spam solutions, spam blockers and email spam filters.

Anti spam solutions basically do one or more of the following things:

1. Anti spam solutions check the senders’ names and addresses and filter the spam emails according to a black list of spammers they own and update.

2. Anti spam solutions check the recipients’ names and addresses and according to certain parameters, they filter the emails. For example, if the mail is sent to a large group sorted alphabetically, the email is considered spam.

3. Anti spam solution scan the emails (Their subject and body) and search for certain words or phrases such as “Viagra” and filter the spam email accordingly.

There are many kinds of anti spam solutions such as anti spam lotus, anti spam exchange 5.5, anti spam for outlook express and others. Some work on the server layer and some on the client layer. But basically, they all do the same job - Make your life better

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