Email may be your daily part of your life, but it was not always there. Although it is actually longer than the internet and even longer than ARPAN. Its evolution was simple and was based on technological change. Early use of email was basically like a note on someone's desk, except that the note was left in a directory, so e-mail marketing was in fact not an option. A user simply left the note in another user's directory so when logged in they will see it. It was not like mailboxes for sending and receiving e-mail, but they did reach their goal.
The first real e-mail system was called MAILBOX and was used in 1965 by MIT. It's been a long time since people thought the email was being introduced. This program worked well, and another program that sent the emails was called SNDMSG, basically "sending a message".
Mainframe computers that used this type of program included up to 100 users. People often used a "silent terminal" to join the mainframe. The silly terminals did not have any memory or actual storage; they simply allowed people to join the mainframe. As a result, the work was actually connected to the remote major machine.
This was the Internet job, so email only applied to users who use the same computer. As a result, no actual email address or e-mail was required. Instead, it gave an e-mail message to the mainframe so others could see it, which meant that if you used e-mail marketing at all, it certainly did not come to many people. Then, when computers started communicating with other computers over the networks, e-mail became more complicated and the idea of email marketing would ever improve. However, now that computers are able to send an e-mail message that people need addresses to send emails between networks and deliver them to the right person.
Today, email marketing is based on the fact that thousands of email addresses send information in a fast and affordable way. However, at the beginning of emails, the question of email addressing and sending over the network was already in the early stages, so e-mail marketing would still be a long way since many people might be touching the keyboard a few moments. Then, in 1972, Ray Tomlinson played a huge part in creating and receiving e-mail, and he chose @ to mark an e-mail destination. This alone opened emails to send and receive them through networks and the root of email marketing.