Networking and the Internet Applications Email Dr M

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Networking and the Internet Applications: Email Dr. M. Tanvir Afzal

Networking and the Internet Applications: Email Dr. M. Tanvir Afzal

Internet Applications: Email Messaging applications ü Instant Messaging ü Browser based chatting ü Twitter

Internet Applications: Email Messaging applications ü Instant Messaging ü Browser based chatting ü Twitter based tweets ü Facebook wall. ü One of the oldest is Electronic mail (Email) 2

Internet Applications: Email Messaging applications ü Simple Mail Transfer Protocol (SMTP) ü Scenario: 3

Internet Applications: Email Messaging applications ü Simple Mail Transfer Protocol (SMTP) ü Scenario: 3

Internet Applications: Email Scenario ü mafzal from cust. edu. pk wants to send email

Internet Applications: Email Scenario ü mafzal from cust. edu. pk wants to send email to hmaurer from iicm. tugraz. at 4

Internet Applications: Email. iicm. tugraz. at 1 220 SMTP Sendmail Gallifrey 1. 0; Sun,

Internet Applications: Email. iicm. tugraz. at 1 220 SMTP Sendmail Gallifrey 1. 0; Sun, 12 Aug 2018 14: 34: 10 2 HELO mail. cust. edu. pk 3 250 mail. iicm. tugraz. at Hello mail. cust. edu. pk, pleased to meet you 4 MAIL From: [email protected] edu. pk 5 250 2. 1. 0 [email protected] edu. pk. . . Sender ok 6 RCPT To: [email protected] tugraz. at 57 250 2. 1. 5 9 354 Enter mail, end with ". " on a line by itself 10 Subject: Extermination. 11 12 EXTERMINATE! 13 Regards, Dr. M. Tanvir Afzal 14. 15 250 2. 0. 0 r 7 NJYAEl 028071 Message accepted for delivery 16 QUIT

Internet Applications: Email Other Protocols ü SMTP for text messages. ü MIME (Multipurpose Internet

Internet Applications: Email Other Protocols ü SMTP for text messages. ü MIME (Multipurpose Internet Mail Extensions) to convert non-ASCII to SMTP compatible form. 6

Internet Applications: Email Other Protocols ü Post Office Protocol Version 3 (POP 3) ü

Internet Applications: Email Other Protocols ü Post Office Protocol Version 3 (POP 3) ü Internet Mail Access Protocol (IMAP) ü User can download and maintain mail messages into folders etc, POP 3 helps to store messages on local machine, IMAP on mail server machine. 7

Summary Internet Applications: Email ü SMTP ü Working Scenario ü MIME ü POP 3

Summary Internet Applications: Email ü SMTP ü Working Scenario ü MIME ü POP 3 ü IMAP 8