1. Cocca, P. (2004). E-mail Security Threats: SANS Institute Infosec Reading Room. Retrieved May 25, 2009, from http://www.sans.org/ reading_room/whitepaper
2. http://enterprisesecurity.synmtic.com/article.cfm}articled =767. (n.d.). Site visited May 25, 2009.
3. http://simple.wikipedia.org/wiki/E-mail site visited May 25, 2009
4. http://www.computerworld.com/itresources/restory/1,4167,STO62002KEY73,00.html#Anchor_virus_11481 (n.d.). site visited May 25, 2009.
5. http://www.e-mailrepliescom/Email_Policy.html (n.d.).site visited May 26, 2009.