How Does An Email Server Work?

July 3, 2016 by S4 R

Filed under Cloud, Cloud Mail Server

Last modified July 3, 2016

How Does An Email Server Work?

Email is serious but it is various simple skills at work, something we take for granted once we click compose and send. Behind every mail is a powerful engine is known as the mail server which pushes the mails through net. Several person usage them, but how does a email server work?


Email Server

How does an email go from sender to receiver?

Every mail communication is nothing but a text file and over the attachment. Just like all information through the net, a mail is also broken into smaller packets. Once the senders click the send key, all the packages are uploaded to a central system that hosts the mail service.

The mail service then relays these packets through the net to the server which clutches the mail service of the receiver. The email server of the receiver looks for mail address, finds it and places the mail inside the inbox. The mail customer meets again the packets into a whole email. The receiver’s logs into his account download the mail.

Step By Step- How the Slight parts come together:

We use an online mail service such as Gmail, Yahoo mail to compose a mail and add attachments and other data records. Also we usage mail client software such as Thunderbird, Outlook, Mac OS’X mail.

  • Once we send a mail, our system joins to our mail service’s mail server. A server is a centralized system which accomplishes a precise type of service. A mail server for illustration handles mails. The mail server liable for sending mails is known as SMTP (Simple Mail Transfer Protocol) server. One SMTP server can authorization on the email to other SMTP server and transmit it to the destination from various hops
  • Each mail has the sender’s address and the receiver’s in the ‘To’ field. Once a mail is send, the mail client connects to the SMTP server of the sender’s mail service. The client communicates the address of the sender’s address of the receiver and the content of the communication.



Email Server

  • The SMTP server goes to work at locating the where about of the receivers. Using the receiver’s email ID, it locates the domain name.
  • If the receiver’s email ID had the similar domain name as the sender, then the process would be simples. The SMTP server would have conveyed the email to its local outgoing mail server i.e. POP3 or IMAP.
  • Every domain name represents a unique web address is known as Internet Protocol address. Think of it as postal address of the net. The link among domain name to their IP address is stored in the Domain Name Registry. The SMTP server then contacts the server where the register office is kept. The DNS server sends back the address to the SMTP server.
  • The SMTP server then proceeds to hand over the mail to the SMTP server of the receiver’s mail service. This SMTP server checks and confirms that the email addressed to receiver have its place to it and hands it over to its complement, the POP3 server.
  • Post Office Protocol (POP3)servers are the servers that do the occupation of recipientemails. The numeral ‘3′ is the form number of the protocol in usage. POP3 servers have email accounts (our email IDs). Everyemail account is charted to a username-password mixture. When the message is offered over to the POP3 server, it is reserved and stored in the email account until the receiver logs in and checks the email.
  • A mail client attaches to the POP3 server and expresses it to permit download of the mail. When transferred to the local machine, POP3 in-boxes do not recollect a copy of the mail. Thus, you cannot check your mails from other system as it has previously been downloaded. To nail this trouble, IMAP was presented. IMAP4 (Internet Message Access Protocol version 4) just recollects a copy of the mails on the server. This permits you to admittance your mail from any place with a net connection.

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