a brief presentation about the email

1. Electronic Mail
(Email)

2. Evolution of Mailing
Electronic mail
(Email)
Telegraph
Snail mail
• By horse or by
foot
• Postal
• Morse Code
• Facsimile
(Fax)
Reference: Overnight Prints (2013)

3. Invention
Inventor: Ray Tomlinson in late 1971
First message sent:
“QWERTYUIOP”
Designation: @ symbol to separate the
user’s login name and the host
computer
Reference: Duffy (2003) ; Brain & Crosby (2013);
Bellis (2013)

4. How Email Works?

5. Mail User Agent
Mail Delivery Agent
Mail Transport Agent
Reference: Kavi Help Center

6. Mail Servers
Simple Mail Transfer Protocol (SMTP)
 handle the sending
 TCP Port 25
Post Office Protocol (POP3)
 Retrieving emails & leaving a copy on the server (in some
cases)
 TCP Port 110
Internet Mail Access Protocol (IMAP)
 Coordinating the status of emails (read, deleted, moved)
 TCP Port 143

8. References
Bellis, M. (2013). HIstory of Email & Ray Tomlinson. About.com Inventors. Retrieved
from http://inventors.about.com/od/estartinventions/a/email.htm.
Brain, M. & Crosby, T. (2013). How E-mail Works. howstuffworks.com. Retrieved from
http://computer.howstuffworks.com/e-mail-messaging/email.htm.
Duffy, D. (2003, September 8). Ray Tomlinson: Inventor of e-mail. Darwin Magazine.
Retrieved from http://hr-system.com/email,%20how%20Ray%20Tomlinson%20invented@.pdf.
Kavi Help Center. (2013). How Email Really Works. In Kavi Help Center, Kavi Mailing
List Manager Help. Retrieved from https://www.oasisopen.org/khelp/kmlm/user_help/html/how_email_works.html.
Overnight Prints. (2013). The History of Mail: From Traditional to Electronic. Retrieved
from http://www.overnightprints.com/history-of-mail.