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Advantages and Disadvantages

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Printable. Reliable. Global. Generality. E-Mail: Advantages and Disadvantages. Advantages ... Flaming. Message Composition. Netiquette ... – PowerPoint PPT presentation

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Title: Advantages and Disadvantages


1
Introduction
  • Advantages and Disadvantages
  • Userids, Passwords, and E-Mail Addresses
  • Message Components
  • Mailer Features
  • E-Mail Inner Workings
  • E-Mail Management
  • MIME Types

2
E-Mail Advantages and Disadvantages
Introduction
  • Receive and send to
  • Any country
  • Computer users
  • Many users at once
  • Computer programs

3
E-Mail Advantages and Disadvantages
Advantages
  • Convenience
  • Speed
  • Inexpensive
  • Printable
  • Reliable
  • Global
  • Generality

4
E-Mail Advantages and Disadvantages
Disadvantages
  • Misdirection
  • Interception
  • Forgery
  • Overload
  • Junk (spam)?
  • No response

5
Userids, Passwords, and E-Mail Addresses
Userids
  • Login name, user name, account name
  • Mnemonic meaning

6
Userids, Passwords, and E-Mail Addresses
Passwords
  • Authentication
  • At least five characters
  • Contain nonalphabetical symbol
  • Contain a number
  • Uppercase and lowercase letters

7
Userids, Passwords, and E-Mail Addresses
E-Mail Addresses
  • username_at_hostname.subdomain.domain
  • _at_ at
  • Suffix is general from left to right

8
Userids, Passwords, and E-Mail Addresses
Domain Names
  • Domain name space (DNS)?
  • Distributed naming scheme
  • Country codes
  • Generic top-level domain names
  • com commercial business edu education
  • gov U.S. government int international
  • org nonprofit organization mil U.S.
    military
  • net networking organization

9
Userids, Passwords, and E-Mail Addresses
E-Mail Address Determination
  • Ask the person
  • Search engine

10
Userids, Passwords, and E-Mail Addresses
Local and Systemwide Aliases
  • Easy-to-remember names
  • Local or private aliases
  • Systemwide (public) alias
  • Distribution list (can be local or system wide)?

11
Message Components
  • E-mail client displays following information
    about each e-mail message
  • Date
  • Sender name
  • Size (bytes)?
  • Subject line

12
Message Components
  • E-mail header
  • Full header includes route and message id
  • From
  • Date
  • To
  • Subject
  • Cc
  • (Bcc) Blind carbon copy

13
Message Components
  • Body
  • Greeting
  • Text
  • Signature
  • MIME Attachment (Multipurpose Internet Mail
    Extension)?

14
(No Transcript)
15
Message Composition
Structure
  • To
  • Cc
  • Attachment
  • Subject
  • Text editor

16
Message Composition
Netiquette
  • Emoticons
  • SHOUTING
  • Flaming

17
Message Composition
Composition
  • Signature file
  • Attach files
  • Insert a file

18
Mailer Features
  • Compose
  • New
  • Reply
  • Forward
  • Vacation

19
Mailer Features
  • File
  • Save
  • Insert
  • Exit
  • Attach

20
Mailer Features
  • Reply
  • To sender
  • To all
  • Forward
  • Include bracketed

21
Mailer Features
Forwarding
  • If you have multiple e-mail addresses
  • .forward

22
E-Mail Inner Workings
  • Mailer, Mail Server, and Mailbox
  • Ways of reading email
  • Store and Forward
  • Central Mail Spool
  • Bounce Feature

23
E-Mail Inner Workings
Mailer, Mail Server, and Mailbox
  • Mailers
  • Mail program, mail application, mail client
  • Program (software) that runs on your machine
  • Mail server
  • Program that runs on a remote computer
  • Receives, stores, and delivers e-mail
  • Mailboxes
  • Disk file

24
E-Mail Inner Workings
Store and Forward Email System
Receive email -Post Office Protocol (POP)?
-Interactive Mail Access Protocol (IMAP)? Send
email -Simple Mail Transfer Protocol
(SMTP)? Specify username, password?
25
E-Mail Inner Workings
Central Mail Spool Email System
26
E-Mail Inner Workings
Bounce Feature
  • E-mail bounces is undeliverable
  • Bad user account name
  • Bad domain name
  • Domain name server down
  • Other malfunction

27
E-Mail Management
Action Options
  • Delete the message, Mark message as junk (spam)?
  • Skip a message
  • Read the message
  • If you come back from vacation, read messages in
    reverse order.

28
E-Mail Management
Vacation Programs
  • Considerations
  • Do most of your business associates realize you
    are on vacation?
  • Are you subscribed to any mailing lists?
  • Do you tell recipients who to contact in your
    absence?

29
E-Mail Management
E-mail and Business
  • Currently legal for employer to read all company
    e-mail
  • Business e-mail is backed-up and such back-ups
    can be subpoenaed
  • Businesses sometimes use e-mail filters to
    restrict communications

30
MIME Types
  • Multipurpose Internet Mail Extensions (MIME)?
  • ASCII text files text/plain
  • HTML text/html
  • Binary files audio/wav, image/gif,
    application/doc
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