It was not too long ago that email mailboxes were so full of junk mail and spam that they threatened to render electronic communication useless. When you opened up your email you were bombarded with poorly written advertisements for $ex, V!agra, and tons of other intentionally misspelled products, designed to evade any spam blocking devices. Those interested in consumer protection knew the ultimate goal, to eliminate and block spam, but as soon as they created a product designed to do just that, the spammers evaded their efforts by getting more creative. That is, until modern anti spam software was developed. Antispam software comes in a variety of forms, with the obvious ultimate intent of stopping unwanted emails from reaching you.
Blacklist
One of the primary anti spam methods is known as blacklisting. This software identifies the IP address of the spam sender, and then communicates with the Internet Service Provider of the sender and instructs the ISP to block mail from that IP address to your email account. In theory this is a fool proof solution. The reality, however, is that there is a lot of money to be made in spamming, so forcing a spammer to...