


Spam: the public enemy number one (of Internet)
He supposes the most serious problem for the users and the suppliers of services that operate in the Network
The electronic mail offers to the user several and important advantages, between which it emphasizes his immediacy, that it allows to connect of automatic way to the emitter and the receiver of the message. The facility of transmission and his low cost has caused, nevertheless, that is used for uses that border in many cases the legality, when they do not harm the LSSI directly (Law of Services of the Society of the Information).
Around the 80 percent of the million post office that circulate on a daily basis around everybody it corresponds to the denominated Spam or mail sweepings. One is messages sent of indiscriminate way to multitude of electronic directions, sometimes with the unique intention to damage the equipment through virus. It supposes, thus, a true problem as much for the users as for the suppliers of computer science services.
To reduce the Spam arrival and to finish with all the disadvantages that it generates are an exigency more and more demanded on the part of companies and individuals. Different formulas exist to especially obtain the one that happen to establish filters antiSpam, in the computers of the user, that examine the content of the post office that arrive at the entrance tray.
The greater challenge of systems antiSpam is in finding the balance between the post office that filter and those that are allowed, aspect that in many occasions depends on the criteria of the user. For this reason, installed programs antiSpam in the computer of the end user are most flexible, since they go with time “learning� based on the needs of the adressee of the post office.