Email Security
Email, especially Internet email, has become a basic communications tool. It is one of the most versatile means of transferring information of almost any kind. Any business application where there is a need to transfer information without the requirement for online lookup can be automated with e-mail. Email is also the easiest architecture to deploy for communications with remote employees, business partners, etc.
However, email is notoriously insecure. It is highly vulnerable to interception, and forgery of e-mail is trivial. Therefore without proper security measures, it is highly inadvisable to transfer sensitive information by e-mail, or to put too much trust on information received via e-mail.
Unsolicited bulk email (‘Spam’) is one of the most prevalent threats to network integrity on the public Internet. It causes denial of service at the network level, by flooding bandwidth and overloading email hosts. It reduces productivity both of mail administrators and of end users. This is one area where organizations should give thrust while considering email-messaging security....
