Email is a significant form of Internet based communication. This email or electronic mail has made communication among individuals faster and easier. Electronic mail or email in short is a way of exchanging messages via Internet across different server networks. The system of emailing these days is based on the model of store-and-forward. Mail servers accept the message from the sender, then forward and deliver it to the recipient and store a copy of the message. An email consists of two parts, the header, and the body. The header contains the sender's email address, and the recipient's email address. Usually some additional information is provided in the subject part of the header. Downloading the free SMTP mail server from the websites makes the procedure of communication more successful via appropriate delivery email services. A mode of communication, be it email, is functional and efficient only when it works properly and successfully. Downloading free SMTP mail server is easy too. Using SMTP mail server ensures the successful delivery of message to the specified recipient. Hand-written letters were used for communication among the people prior to the introduction of this email service. But the sender hardly got any confirmation that his letter was delivered to the recipient. The services of delivery email can be considered as the high-tech form of normal letters. The important difference between letter and email is in terms of delivery time. Letters took a few days whereas emails take just a second. It is much easier to confirm the delivery of an email from the sender. The use of free SMTP mail server comes with an advantage of confirming the delivery of emails. As soon as the individuals click on the 'send' button after typing their message in the text box, the SMTP server verifies the Domain Name Registration of the sender's computer and communicates with the server of the recipient. The other computer is informed about the message. The server accepts the message as soon as it comes to know that a message is waiting. This entire procedure is known as the delivery email service. The curiosity about the modern technology made people tech-savvy. As a result of which the use of computer and technology started in the households too along with their use for official purposes. Apart from being utilized as a medium of communication among close friends and relatives, it is being utilized as an efficient mode of interaction between the employees and management in big corporates. This application of delivery email services is more important for corporate communication than communication among social groups. In fact, in current times, even business owners approach their target consumers via bulk delivery email services. Before you download or install free SMTP mail server, it is essential to check the system requirement. This is vital because the procedure of installation will be interrupted in case the system does not meet the requirement. As the result, the email delivery service will not work properly. Thus it is necessary to set up a proper server to get the best results.