Free Spam Junk Mail Filter Blocker

On controlling spam, an anti-spam firewall application will, to an extent, help in keeping viruses at bay. There is, however, no firewall that is 100% hacker proof - there are too many ways in which viruses can be embedded in a software download or regular data, for a firewall to detect and catch them all. However there are some relatively effective firewall programs available on the market, and some of them are actually free for your personal use.

Windows XP, as well as the new Vista have a personal firewall built into the operating system that is by default turned on. Because it monitors and offers popup warnings many people turn it off, and leave themselves remarkably vulnerable to attack. The Windows firewall default of "on" should be maintained until and unless you find another software or hardware firewall to protect your system.

Spammers harm

Spammers can get unauthorized access to your mail box and aside from constantly inundating your inbox with unwanted email, spammers now pose grave threats to the health of your computer

One of these new dangerous aspects of spam are that illicit senders can now manipulate your email addresses, and make it seem to the rest of the world that the spam that is sent is coming from your personal computer or domain. This may result in your service provider blocking your Internet connection, or terminating your account. And all of it can be done without any knowledge on your part. It can easily be made to seem that you are an actor in a malicious mail campaign when in fact you are an unwitting actor at best.

Spam is no longer harmless, silly, or simply annoying. It is increasingly harmful and we need to protect against it.

The whitelists spam protection

The efficiency of whitelists comes at a price, because it produces a large number of false positives. This means that a lot of legitimate email goes undelivered. To deal with this problem, a challenge-response technique is often instituted.

Another impractical aspect of whitelists arises when the email account user places an online order, registers for a newsletter or other service. Each of these new email sources must be manually added to the white list. If the user forgets to do this, or enters it incorrectly, important email may be blocked.