Principle objective of this article is to discuss the reasons that effect Email Security. Email security means the collective measures employed to secure the accessibility and content of an email account or service. It allows somebody or organization to guard the overall access to more than one email addresses/accounts. A email service provider implements email security in order to secure subscriber electronic mail accounts and info from hackers – at rest in addition to in transit. This article has discussed various safety issues to emails being sent over a network and furthermore touched on a number of security aspects that need to be considered in transmitting secure email.