We all use emails because it is fast and makes our lives easier. In the conventional mailing system, the processing time was indefinite. When comparing both systems, there is a drastic difference. However, in some unusual situations, the emails could be delayed unpredictably. Knowing how the email system works is important to all the email users. However, most of us are unaware of what goes on behind the scenes. Learning this will help to figure out the status of your emails sent that ended up in an error or with a bounce back message. We will see the working of emails in detail in this article. What is email? The term “email” stands for “electronic mail”. The electronic mail is introduced first in the 1960s, however it became available in the current structure in the 1970s. Let us take a look at how email actually works. Protocols used in email systems The email communication is done via three protocols in general. They are listed below. IMAP POP SMTP 1. IMAP...