Simple Mail Transfer Protocol (SMTP) is collection of communication protocol, which allows user to share information between multiple servers. Today most of the email technology is developed to utilize SMTP while sending e-mails as it is applicable for outgoing messages. The technology involved in SMTP generates a code which makes the communication between servers extremely convenient. The code is basically part of message that is differentiated into various categories which other server can easily understand. The e-mail send by the user involves information about sender/receiver, message heading and body. Considering user’s prospective, they see an interactive interface of the e-mail software. Once the message is on transmission channel, it is divided into multiple strings of text. These texts are related to each other via codes which are specifically dedicated to particular section. On the receiver end, the server software demodulates the codes and display message in a properly sequenced format.
