What is Electronic mail ?
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Electronic Mail LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 1 Limani Bhavik & Surani Saunak (Imperial Infosys)
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What is Electronic mail ?, how to write email?, Architecture and Services, The User Agent, Message Formats, Message Transfer, Final Delivery,
Transcript of What is Electronic mail ?
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 1
Electronic MailLimani Bhavik & Surani Saunak (Imperial Infosys)
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 2
-> Electronic Mail OR E-Mail…-> Before 1990 it was mostly use in academia.-> In 1990s public know about E-Mail.-> Number of E-Mails sent per day now is vastly more then the number of snail mail.
Electronic Mail
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 3
• Architecture and Services• The User Agent• Message Formats• Message Transfer• Final Delivery
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 4
Electronic Mail (2)
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 5
Architecture and Services
Basic functions• Composition• Transfer• Reporting• Displaying• Disposition
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 6
The User Agent
Envelopes and messages. (a) Paper mail. (b) Electronic mail.
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 7
Message Formats – RFC 822
RFC 822 header fields related to message transport.
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 8
Message Formats – RFC 822
Some fields used in the RFC 822 message header.
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Message Transfer
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS)
LIMANI BHAVIK & SURANI SAUNAK (IMPERIAL INFOSYS) 10
Final Delivery
(a) Sending and reading mail when the receiver has a permanent Internet connection and the user agent runs on the same machine as the message transfer agent. (b) Reading e-mail when the receiver has a dial-up connection to an ISP.
