Sending a letter electronically is called emailing. A few years ago, when there was no Internet user, people used to send or receive their letter through the post office, but today people do the same work online. What we call emailing. When we send an email to someone, it reaches our recipient in a few seconds but if you do this work through the post office then it used to take months to reach your recipient but now there has been some improvement and now It takes more than 7 days and less than 15 days, now you must have understood that sending email is like sending a letter electronically, you must have used email in your daily life.