How To Find The Best Spam Filter
The battle against spam seems to be a never ending war that many IT workers and consumers fight everyday. Fortunately, the arsenal of hardware and software solutions is always growing and improving, but does anyone really know what to look for in the best spam filter for their needs?
Today’s spam filters use a number of different methods for flagging messages as spam. The most commonly used filters are currently Bayesian filters and Community filters. Most consumer and professional grade spam filters employ both methods to provide superior results and you’ll be wise to ensure that any spam blocker you employ, whether it’s free or paid for, utilizes both systems.
The benefit of using a Bayesian filter is that it has the ability to learn over time and adapt to your spam filtering needs. This filter strips down and analyzes the content of a message to determine whether it gets quarantined or sent to your inbox. As time passes, its performance improves and telling it that a certain message is not spam is as easy as pressing a button.
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Community filters, unlike Bayesian filters, rely on a voting system to learn what spam is. When someone within the community, such as the Gmail community, receives a spam message, they mark it as such. Once a certain type of message receives a number of spam votes, it is blocked from the entire community’s inboxes. In addition to employing the right filtering technology, the best spam filter for your needs will also need to meet your cost requirements. For most consumer purposes, the free spam filters that are included with most email programs are usually more than adequate for the job. For corporate email systems, however, a serious decision must be made between free and paid-for hardware and software. Small businesses with lower profit margins will most likely benefit from sticking with open source spam solutions, since their are no maintenance costs involved. Large businesses with dedicated IT teams and their own email servers will need to consider a hardware solution if their current spam filters aren’t up to the job. However, you should never turn to a hardware solution until you have first ensured that your current spam filter is fully optimized. When it comes to finding the best spam filter for your needs, you’ll need to assess any system on a number of different factors, such as cost and the filtering technologies that are used. However, you should never replace or pay to supplement your current system until you’ve tested it at its optimal configuration. |
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