Saturday, May 3, 2008

Spam Filters

Although not previously recognized as a serious threat, spam has now reached around 60% to 70% of all email traffic worldwide. Various agencies and organizations, including government agencies, recognize the threat of spam brings with him. Thus, anti-spam efforts have been on the rise in recent years.
Spam software is one of the most frequently used tool against spam. There are many programs available to send spam to date in the market. They use different methods and techniques. In choosing the right spam software for your company, you should at least know the concepts behind them. It will help you choose the most suitable spam software to meet your needs.
Spam software typically uses spam filters. Spam filter, mostly identified specific issues - keywords or IP-address, for example - that are either allowed to pass through or blocked. One method that some spam software is used RBL or real-time black hole list. In this method, spam filter, takes note of IP-addresses that are known to send spam. All communications with the IP-address is blocked.
Another method used in spam software based on keyword filtering. In this method, spam software is configured by the user by typing certain keywords and key phrases that should be banned. All communication with these key words and phrases then blocked filter.
Other spam spam software allows the use of permission-based filtering. E-mail addresses is expected to be allowed, otherwise they hold. Spam filters that are permission-based, and also use tags embedded in e-mails to determine whether to give permission or not. The absence of these tags will be promptly spam filter to block e mail.
Another method used is spam software concept-based filtering. This method scans the text and determine its concept. If the concept does not meet the requirements spam filter, e-mail, then blocked.
These only some of the most frequently used methods in the fight against spam spam programs. Determine what method will suit your needs best. You can then look at various spam software, which can be use.
Want learn more about spam filters



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