In recent times the most commonly method adopted to communicate is through the use of email service. This method is not just fast but also cheap and easy accessible. But one of the problems associated with this technology is spam. The trouble of a spam is that how hard you try it comes again and again in your e-mail box. Though you may never open these messages but still become again. In order to get rid of spam nowadays e-mail server providers also provide spam filter services. They are known as spam blocker.

Each Spam filter works in a different way. Some of them have point values meaning that by placing certain phrases or words that are usually found within spam mails. Some spam blockers also assign points such as they may and certain kind of numbers that are often considered as spam e-mails. With the technological sophistication many spam mailers also use methods and e-mail services that look legitimate.

These Spoofed headers are often very difficult to detect. Many times it happens that a spam mailer sends a program that may take over your e-mail inbox. Sometimes it also happens that your computer might be sending a kind of spam without you know it. Though some computer soft wares n easily detect altered headers but still there are chances that a spam may enter your mail box.