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There are two kinds of threats that an organization faces from Email. The first is the threat from Viruses, worms, adware and Spyware which cause extensive damage to computers.

The second is SPAM or Junk emails. SPAM emails cause major loss of productivity and can cause financial damage or loss of privacy due to Phishing and Fraud emails.

To remove, detect and prevent the entry of viruses, worms, adware and spyware into your computer, one can use antivirus software. Large numbers of strategies are employed to detect such viruses. Generally, the detection may be signature based and sometimes there may be no signature for a particular malware. The former detection involves finding out known patterns in executable codes. If the user is infected with a virus for which no signature exists, it cannot be detected by signature based method. Heuristics are used to counter such zero day threats. Antivirus software also look for variations in existing viruses. Certain types of antivirus software emulate the virus affected files in a sand box, and analyze them to find out what the infected files would do. Antivirus software has it own advantages and disadvantages. However, merits overweigh the demerits. The disadvantages include: degradation of computer’s performance if not designed properly, inexperienced users may not be able to interpret the prompts that pop out now and then, and finally, not being very user friendly. Also, incorrect decisions made by the users may lead to security problems.

To detect a virus, the antivirus software may employ any one of the following methods:

1. Signature based detection
A list of virus signatures may be used to compare it with the contents of the files and this would help the software detect the virus and eliminate it. The contents are scrutinized in pieces because the viruses are capable of embedding themselves. This is the most common method of virus detection.

2. Malicious activity detection
If the antivirus software recognizes suspicious behavior in the system, the suspected program will be thoroughly checked for virus by signature based detection. Unknown viruses can be identified in this method.

3. Heuristic based detection
By analyzing or emulating the files, unknown viruses can be detected. File analysis is a process in which the files that are suspected to be infected are searched thoroughly for any kind of virus activity. This type of detection system operates very slowly because it involves a very large amount of system resources. File emulation is a process by which the program is executed in a virtual environment. Hence, viruses can be detected and further steps for removing the virus can be taken.

SPAM detection is much more complex and involves a combination of Sender reputation score and Content analysis.

1. Sender Reputation Method: This method tries to figure out whether the sender of an Email is a SPAMmer. Some of the techniques which are used are Realtime Blacklists, and Greylisting. In these methods, the emails are blocked not on the actual content but by the reputation of the sender.
2. Content analysis: This method tries to figure out whether the email is SPAM by looking at the content. Like Viruses, these can also be signature based or Heuristics.

Safentrix is a Free Anti-Virus/Anti SPAM Service that secures your email and keeps viruses, spam and malware at bay. Safentrix also ensures that a genuine email can always reach the user. Safentrix.com hosts this free anti-virus, anti-spam service. Users can register in the website to avail the free email security solution provided by Safentrix.

Safentrix provides two types of services, the Standard Service, and the Enterprise Service. Though the Enterprise service is more advanced than the Standard service provided by safentrix.com, the Standard service has enough to protect your email from any type of threat. The greatest advantage in Safentrix is that, there is no expiry for the standard service, and you don’t have to often worry about going back and renewing the service. The setup for Safentrix is very user friendly, and it gets seamlessly integrated with you existing infrastructure. Safentrix, provided by www.safentrix.com is easily one of the most simple and efficient email security solution.

Article Source: http://depositarticles.com/

Safentrix is a Free Anti-Virus/Anti SPAM Service providing website for Email security. Safentrix also ensures that a genuine email can always reach the user. Users can register in the website to avail the free Email Security solution and Mail Security provided by Safentrix

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