Although email security is often viewed as a single issue, it is actually a conglomeration of several different threats that damage computers and defraud recipients, as well as undermine the effectiveness and reliability of email systems. Email security products rely on a single technique to identify and stop email threats. Today’s email security products are created to block spam, phishing attacks, viruses and spyware, and enable precise control over message content.
Email security policy may rely on the two common strategies. The first strategy consists in the fact that email security policies have to prohibit access to personal email accounts from the office. The second common strategy is to enforce a global confidential signature.