However, IMAP stores messages on the server permanently, and allows the user to access them from any compatible device at any point of time. POP3 stores the recipient’s messages temporarily on the server until he/she accesses them. The second delivery boy does the job of receiving the mail and handing it over to you this second protocol varies between POP3 or IMAP, expanded as Post Office Protocol and Instant Message Access Protocol, respectively.

It is the most common and widely-used protocol for sending email messages between email servers.

The first delivery boy is called SMTP or Simple Mail Transfer Protocol. To begin with, you should know about the 3 main ‘delivery boys’, or in technical terms, ‘protocols’, that are responsible to deliver and receive your mail. Knowing them would educate you regarding various security features that you should look out for when choosing an email service as per your security needs. To select a comparatively secure email service, it is essential that you know the basics of the technical aspects in email communication. A hacker would hack into any of these computers and read your personal emails he/she could also manipulate the emails before they reach the desired recipient. An email travels through several computers before reaching the recipient.

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