In modern era, computer is a most essential electronic product for every individual. In every field computer plays a vital role. At every step in our day to day life we need this device. With the passage of time, computing technology has undergone several alterations to enhance the proficiency of the device and make it more user friendly. This magical device can perform several complicated jobs in a convenient and efficient way. The most essential Internet-based function of this device is e-mail or electronic mail. These days a greater segment of people, especially the tech-savvy individuals prefer sending emails to writing letters to their friends and relatives. Free SMTP mail server assists several to send free emails to friends and relatives living anywhere across the globe. This SMTP email service provided by this SMTP mail server follows several steps to make the procedure of communication efficient. Free SMTP mail server supports SMTP email service on Windows operating system. This lets individuals send emails directly from the computer of any individual. This is indeed uncomplicated and very helpful especially for those using laptops. People traveling around the globe connect their laptops to various ISPs in various countries. Even the free SMTP mail server is powerful enough to keep their privacy and security. Different email programs such as Eudora and Outlook Express are supported by this mail Server. But SMTP email service can be best compatible with Outlook Express. Email programs that the individuals are already using for sending or receiving email messages can be connected to this free SMTP mail server easily. Making use of the term "localhost" in place of the present SMTP host will establish the connection in an easier way. Once the connection is established, individuals can send emails in an usual manner. Free SMTP mail server works very fast. This establishes numerous SMTP connections while sending, and thus help individuals to make the maximum use of their Internet connection. This program provides us with an easy-to-learn user interface. This program of SMTP email service is a freeware. Therefore you can easily download and try out it. Whenever an individual sends an email, an interaction takes place between the mail client and the SMTP server. The mail client or the sender requests the free SMTP mail server to handle this email sending. This host SMTP server will then interact with the other SMTP servers so that email is delivered efficiently. The following are the steps that happen once we press the button to send the email: Outlook Express interacts with SMTP server and tells it the sender's and recipient's address. It also tells about the body of the email. After taking the "to" address, it breaks the same into two different parts. One part of it is the name of the recipient and the other part is name of the domain. After this step the server of the sender needs to interact with the recipient's domain. Then the sender's SMTP server interacts with the DNS or Domain Name Service to know about the IP address of the other SMTP server. Then it establishes connection with the recipient's server and delivers the email message. After recognizing the domain name, the message is put into the recipient's mailbox.