In today's business world, spam e-mail has emerged as the biggest evil that is cutting productivity and adding troubles. Companies receive thousands of deceptive, indecent and irking e-mails in bulk on a regular basis. Spam is a jargon used commonly to express discarded, undesirable and promotional e-mails or junk e-mails. Spam comes in many forms. Latest forms are pdf and MP3, so spammers are on an ongoing basis exploring new ideas for getting their messages through. It is not an acronym so it does not really denote something. Actually, a spam e-mail is usually a commercial mail sent to the recipients who did not request any kind of information from the company or the individual sending it.

Getting huge volume of unwanted commercial e-mails can significantly cost the individuals and businesses a lot of time and resources as they have to sort out the legitimate mails, removing the unsolicited messages and this process, at times, become very exhaustive and frustrating, thus hindering efficiency.

Removing spam is a lengthy process; performance of the e-mail server gets several affected and network security is also put at greater risk from malevolent e-mails. Furthermore, the company also faces the risk as these spam mails might lead to irreparable harm to the systems, thus causing disorder and big loss of work and capital to the company. Spam mails can also carry virus and malware that can really hurt an organization.

The only measure against the spam threat ensuring total security and protection is professional assistance. Thus, the server should be shielded to assure that all the passing information is filtered and fire-walled against spam.

Typically, a server spam filter is a software application that scrutinizes the incoming messages, spotting spam on the basis of pre-determined configurations while detaching the unwanted e-mail so that it never reaches the users? inbox. And one of the widely used servers is that developed by Microsoft. Dubbed as Exchange Server, this Microsoft product makes e-mailing more speedy and resourceful. However it is often not efficiently enough when handling spam and junk.

Spam devices can be of great help to carry out filtering at an exchange server or spam blocking at exchange server. A server spam filter facilitates the users to automate the spam removal procedure at the server level - the receiving source ? before it reaches the network of personal computers. Automating is a suggested task as it saves the personal computer, and time of users in addition to the network from damage which can lead to data loss and downtime.

Installing extra spam filters at exchange server level allows businesses to be more efficient in controlling spam and maintain the confidentiality of their mails without revealing it to external factors. Exchange Server filters operates from a central server, generally linked to several spam ?blacklists? that spots the recognized spam senders while evaluating every e-mail on the basis of its individual features.