EMail: Advantages and Disadvantages - PowerPoint PPT Presentation

Loading...

PPT – EMail: Advantages and Disadvantages PowerPoint presentation | free to view - id: 370f3-MTNmN



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

EMail: Advantages and Disadvantages

Description:

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

Number of Views:6424
Avg rating:5.0/5.0
Slides: 53
Provided by: charlott89
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: EMail: Advantages and Disadvantages


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

2
E-Mail Advantages and Disadvantages
  • Introduction
  • Advantages
  • Disadvantages

3
E-Mail Advantages and Disadvantages
Introduction
  • Receive and send to
  • Any country
  • Computer users
  • Many users at once
  • Computer programs

4
E-Mail Advantages and Disadvantages
Advantages
  • Convenience
  • Speed
  • Inexpensive
  • Printable
  • Reliable
  • Global
  • Generality

5
E-Mail Advantages and Disadvantages
Disadvantages
  • Misdirection
  • Interception
  • Forgery
  • Overload
  • Junk (spam)
  • No response

6
Userids, Passwords, and E-Mail Addresses
  • Userids
  • Passwords
  • E-Mail Addresses
  • Domain Names
  • E-Mail Address Determinations
  • Local and Systemwide Aliases

7
Userids, Passwords, and E-Mail Addresses
Userids
  • Login name, user name, account name
  • Mnemonic meaning

8
Userids, Passwords, and E-Mail Addresses
Passwords
  • Authentication
  • At least five characters
  • Contain nonalphabetical symbol
  • Contain a number
  • Uppercase and lowercase letters

9
Userids, Passwords, and E-Mail Addresses
E-Mail Addresses
  • username_at_hostname.subdomain.domain
  • _at_ at
  • Suffix is general from left to right

10
Userids, Passwords, and E-Mail Addresses
Domain Names
  • Country codes
  • Domain name space (DNS)
  • Distributed naming scheme
  • Generic top-level domain names
  • com commercial business edu education
  • gov U.S. government int international entity
  • org nonprofit organization mil U.S. military
  • net networking organization

11
Userids, Passwords, and E-Mail Addresses
E-Mail Address Determinations
  • Ask the person
  • Program for locating people
  • Browser
  • Verify with program
  • Search engine

12
Userids, Passwords, and E-Mail Addresses
Local and Systemwide Aliases
  • Easy-to-remember name
  • Distribution list or private distribution list
  • Local or private aliases
  • Public alias

13
Message Components
  • E-mail client displays following information
    about
  • each e-mail message
  • Date
  • Sender name
  • Size (bytes)
  • Subject line

14
Message Components
  • E-mail header
  • Full header includes route and message id
  • From
  • Date
  • To
  • Subject
  • Cc
  • Blind carbon copy (not visible)

15
Message Components
  • Body
  • Greeting
  • Text
  • Signature
  • MIME Attachment

16
(No Transcript)
17
Message Composition
  • Structure
  • Netiquette
  • Composition

18
Message Composition
Structure
  • To
  • Cc
  • Attachment
  • Subject
  • Text editor

19
Message Composition
Netiquette
  • Emoticons
  • SHOUTING
  • Flaming

20
Message Composition
Composition
  • Signature file
  • Attach files
  • Insert a file

21
Mailer Features
  • Compose, File, and Reply
  • Bracketed Text and Include
  • Forwarding

22
Mailer Features
Compose, File, and Reply
  • Compose
  • New
  • Reply
  • Forward
  • Vacation

23
Mailer Features
Compose, File, and Reply
  • File
  • Save
  • Insert
  • Exit
  • Open
  • Attach

24
Mailer Features
Compose, File, and Reply
  • Reply
  • To sender
  • To all
  • Forward
  • Include
  • Include bracketed
  • include original message

25
Mailer Features
Forwarding
  • Multiple e-mail addresses
  • .forward

26
E-Mail Inner Workings
  • Mailer, Mail Server, and Mailbox
  • Store and Forward Features
  • Central Mail Spool and IMAP
  • Bounce Feature

27
E-Mail Inner Workings
Mailer, Mail Server, and Mailbox
  • Mailers
  • Mail program, mail application, mail client
  • Software
  • Mail servers
  • Computer
  • Receive, store, and deliver e-mail
  • Mailboxes
  • Disk file

28
  • Three major components
  • user agents
  • mail servers
  • simple mail transfer protocol SMTP
  • User Agent
  • a.k.a. mail reader
  • composing, editing, reading mail messages
  • e.g., Eudora, Outlook,
  • outgoing, incoming messages stored on server

29
  • Mail Servers
  • mailbox contains incoming messages (yet to be
    read) for user
  • message queue of outgoing (to be sent) mail
    messages
  • SMTP protocol between mail servers to send email
    messages
  • client sending mail server
  • server receiving mail server

30
E-Mail Inner Workings
Store and Forward Features
  • 7 by 24 machine
  • Inbox
  • Save and pick-up
  • Post Office Protocol (POP)
  • Simple Mail Transfer Protocol (SMTP)
  • Main spool

31
SMTP
POP3 or IMAP
receivers mail server
  • SMTP delivery/storage to receivers server
  • Mail access protocol retrieval from server, by
    user agent
  • POP (POP3) Post Office Protocol
  • authorization (agent lt--gtserver) and download
  • IMAP Internet Mail Access Protocol
  • more features (more complex)
  • manipulation of stored msgs on server

32
E-Mail Inner Workings
Central Mail Spool and IMAP
  • Interactive Mail Access Protocol (IMAP)
  • Encrypted passwords
  • Hybrid systems

33
E-Mail Inner Workings
Bounce Feature
  • Packets
  • Sequence numbers
  • Handshaking
  • E-mail bounces is undeliverable
  • Bad user account name
  • Bad domain name
  • Domain name server down
  • Other malfunction

34
E-Mail Management
  • Introduction
  • Action Options
  • Vacation Programs
  • E-Mail and Business

35
E-Mail Management
Introduction
  • Does e-mail help you at work?
  • Is e-mail a waste of your time?
  • Are you flooded with e-mail from mailing lists?
  • Is e-mail a distraction?
  • Are you constantly reading forwarded jokes?
  • How can e-mail make your life more enjoyable?
  • How can e-mail make you more productive instead
    of less efficient?
  • Do you receive a lot of useless gossip?

36
E-Mail Management
Action Options
  • Delete the message
  • Skip a message
  • Read the message
  • Triage
  • Skim for important messages
  • Skim for what you can delete unread
  • Work through remainder

37
E-Mail Management
Action Options
  • Skim and delete
  • Read important messages and delete rest
  • Deal with each message as possible
  • If more time needed, postpone

38
Filtering and Routing.
  • A mail folder is like a file folder for
    correspondence.
  • Use mail folders to organize your e-mail.
  • For example, you can organize your e-mail into
    Personal, School, and Work folders.

39
Filtering and Routing.
  • E-mail filtering and routing allows your email
    client to automatically sort your mail into
    folders.
  • With filtering the mailer recognizes specific
    messages by keywords.
  • Some people use filtering to try and minimize the
    spam that they see in their inbox.
  • Not all mailers support filtering though.

40
Filtering and Routing.
  • With routing, the mailer directs mail to a
    specific folder or subdirectory.
  • Filtering and routing are often combined to help
    people manages large amounts of e-mail.
  • Users create filtering rules in their e-mail
    client to route their mail to specific folders.
  • Automatic e-mail filtering can help you deal with
    a barrage of e-mail.

41
Filtering and Routing.
42
Filtering and Routing.
43
Filtering and Routing.
44
E-Mail Management
Vacation Programs
  • Automatically replies to e-mail
  • Considerations
  • Do most of your friends know you are going away?
  • Do most of your business associates realize you
    are on vacation?
  • Are you subscribed to any mailing lists where
    many users could be bombarded?
  • Will knowing you are away for a week make a big
    difference?
  • Do you want people to know you are away?

45
E-Mail Management
  • Considerations (continued)
  • Do you want to generate additional and
    unnecessary e-mail?
  • Do you tell recipients who to contact in your
    absence?

46
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

47
MIME Types
  • Multipurpose Internet Mail Extensions
  • ASCII text files (plaintext)
  • Binary files
  • Viruses

48
MIME types
  • Text
  • example subtypes plain, html
  • Image
  • example subtypes jpeg, gif
  • Audio
  • example subtypes basic (8-bit mu-law encoded),
    32kadpcm (32 kbps coding)
  • Video
  • example subtypes mpeg, quicktime
  • Application
  • other data that must be processed by reader
    before viewable
  • example subtypes msword, octet-stream

49
  • HTML enabled mailers allow you to send and
    receive e-mail written in HTML.
  • Allows e-mail with all the elements found in web
    pages pictures, hyperlinks, etc.
  • These messages look like Web pages.
  • They may be vulnerable to the same viruses that
    web browsers are.

50
Web-Based E-Mail Accounts
  • Every major portal on the web offers free
    web-based email.
  • Yahoo
  • Hotmail
  • The free service is subsidized by banner ads.
  • Some allow you to combine e-mail from other
    accounts.
  • You read web-based e-mail with a web browser.

51
Web-Based E-Mail Accounts
52
Spam
  • Do not reply
  • Delete if you recognize it
  • Consult http//spam.abuse.net/
  • Learn about e-mail harvesters
  • Hide your identity using anonymizers
  • Set up mail filter
  • Get actively involved in the antispam protest
About PowerShow.com