A large number of companies have experimented different tools for removing unwanted e-mail both on their employees, and on their own network, consuming a great deal of time and resources. Recent studies have discovered that few companies do not have special anti spam programs. They must urgently invest in such software or they will suffer the consequences of receiving a large number of unwanted e-mail. What happens usually in the cases where such protection software turns into a matter of negligence? Well, as a rule, their employees risk the unpleasant situation of having their mailbox filled with undesired mail. Approximately 50%of the total e-mails received are spam, and this number is increasing. Anti-spam software producers have worked hard in order to improve different programs that act as a spam filter. From software installed on the e-mail server to gateway applications and outsourcing services, the anti spam program producers promote their products. Obviously, such programs aim at preventing unwanted e-mail from invading our account. Companies specialized in other areas, such as antivirus protection, content filter or multifunctional applications are waiting to become a one stop provider" for the security necessities of the messages. This is why the anti spam market has become a flourishing area of products and technologies. The greater the amount and quality of these products, the greater is the protection from which we, as constant Internet users, can benefit on a regular basis. In any case, one thing is certain: no one likes to sign in and find his or her account crowded with a whole bunch of uncalled-for mail. The job of a spam filter is do redirect all e-mail received by a company to its own data centers, where a number of technicians give their best to put under quarantine unwanted mail messages. The providers of such spam filter have customized their filters in order to be more sensitive to false truths" and in order to stop this invasion of unwanted e-mail. Indeed, there is such an invasion. Fortunately enough, experts have developed advanced possibilities of counteracting it. A gateway anti spam software requires installation on the company's mail server in order to act as a spam filter for incoming messages. These products usually offer other options in order to keep themselves spam-free, including quarantine areas for final users. Many of these products also offer white lists and black lists that teach users how to block spam and, consequently, how to avoid any unfortunate circumstances that could generate a most unwanted blockage of their accounts. These kinds of applications need installation in the company's gateway in order to detect spam in real time, i.e. before it reaches the network. These applications offer the same quality in anti spam protection both for companies and for final users. Overall, anti spam applications are becoming easier to install and to set in action due to their minimal configuration. Many security applications providers have introduced in their own portfolio products to protect them against spam (hardware and software), as well as a great number of multifunctional devices that act as a firewall, but also antivirus filters that act as a spam filter. In this manner, the regular activities going on online and through e-mail will not suffer pointless interruptions because of spamming.
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