Simple Methodology Hidden Behind Simple Mail Transfer Protocol Server


Communication is becoming very simple and easy today. Among the several types of communication processes, mail communication is an easy way to communicate officially and unofficially. Having an email id is found to be very common among people. It moves to the receiver in few seconds helping sender and the receiver to have quick communication. Billions of mails are being sent in a day and it is said that 99.9% of the email are sent successfully and only few becomes unsuccessful. It is due to the use of improper email id or if the domain does not exist. Many people may not know how this successful platform works. This process is done very effectively because of the tasks performed by SMTP – simple mail transfer protocol server. SMTP stands behind each and every email and makes the communication to be very easy. Let us see how simple mail transfer protocol server works behind all emails sent. If you want to buy smtp servers, it is needed for you to read the article below.

The ultimate mail processing techniques 

An application – Layer protocol which helps to transfer and deliver email is termed as simple mail transfer protocol. It is the most important protocol working behind every email. An email can be created by the sender and can attach files if needed. To send an email the sender needs an email client program which can be web based or windows based. After the sender sending the email it quickly reaches the SMTP server which is simple mail transfer protocol server. This server receives the email sent by the sender and it starts searching for the domain which is been mentioned in the sender’s email. Now our SMTP server accesses the DNS which stands for domain name system. This Domain name system searches the needed IP address and it is send to the simple mail transfer protocol server. IP address is nothing but internet protocol which has 12 digit numbers and all IP address have their own domain name. 

Work done by sender SMTP and receiver SMTP 

The simple mail transfer protocol server understands where the email to be sent. But this SMTP server needs to be connected to the other side SMTP server which is the server of the receiver. This is done with the help of intermediaries and the most important intermediaries are:

  • Router 
  • Firewall 
  • Internet 
  • DNS server  

These intermediaries help the sender SMTP server to reach the receiver’s SMTP server and internet searches the correct router. The receiver’s DNS server validates and checks the information sent by the sender. DNS then sends this information to its SMTP server. If the sent mail is valid without spoofing, the simple mail transfer protocol server accepts it. The sender SMTP server now takes the mail from its sender and it pushes it to the router. Here the router breaks the email and then it again send to the receiver’s router. The receiver’s router collects the broken mail to make it as a proper mail and then it sends it to its SMTP server. Last important process is the SMTP checks whether the mail is a spam mail or 3rd party mail and at last the receiver now will be able to receive the mail.