email ppt
DESCRIPTION
presentation on EmailTRANSCRIPT
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SUBIKASH RATHPRN No: 102027
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Contents
• What is email?• Origin • Working of email Servers• Uses• Limitations
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Email and History
• Electronic mail, commonly called email or e-mail, is a method of exchanging digital messages across the Internet.
• Email was transmitted directly from one user to another computer. This required both computers to be online at the same time.
• Today's email systems are based on a store-and-forward model.
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Email and History
• Email servers accept, forward, deliver and store messages.
• Originally a text-only communications medium, email was extended to carry multi-media content attachments called MIME Multipurpose Internet Mail Extensions
• Network-based email was initially exchanged on the ARPANET in extensions to the File Transfer Protocol (FTP), but is now carried by the Simple Mail Transfer Protocol (SMTP),
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Origin
• MIT(Massachusetts Institute of Technology) first demonstrated the Compatible Time-Sharing System (CTSS) in 1961. It allowed multiple users to log into the IBM 7094from remote dial-up terminals, and to store files online on disk.
• Host-based mail systems: This systems allowed communication only between users who logged into the same host or "mainframe“.
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Origin
• LAN-based mail systems: Eventually these systems could also be linked between different organizations, as long as they ran the same email system and proprietary protocol.
• Email ID: hubhost!middlehost!edgehost!user@uucpgat eway.somedomain.example.com
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Working
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Uses
• In Society • Flaming• In Business
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Limitations
• Attachment size limitation• Information overload• Spamming and computer viruses• E-mail spoofing• E-mail bombing• Privacy concerns• Tracking of sent mail
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Any Queries ?IMAP
Memory Management
Simple mail Transmission ProtocolVirtualization
Flaming
Outbox
What is email?
Capasity
DOS
Drafts
YahooIMAP
POP3 POP3
Browser
MSN Mail
Gmail
Inbox
Any Queries???
Spoofing
Bombing
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