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									Electronic Mail




 A New Way to Communicate
               What is E-Mail?
 E-Mail   defined:
  – Electronic transfer of messages between computers
  – Can be one to one or one to many
  – Analogous to a post office box
  – E-mail systems can be run on a LAN, a WAN or
    across the Internet
  – Transfer is almost instantaneous
  – May support the transfer of attached files
  – Is reasonably secure
                  Internet E-Mail
 There   are two main flavours of Internet E-Mail:
  – An ISP-based mail server with mail downloaded to a
    mailbox on the local PC
      This requires a local mail application such as Netscape
       Mail, Eudora or Pegasus Mail on the Internet PC
      The mail program must be set to access the ISP’s server

      Fast access, can work off-line

  – A World Wide Web-based mail system with mail
    stored on the remote server
      Suchas HotMail or Yahoo Mail
      Accessible from any computer that can access the Internet

      Slower access, on-line only, restrictions apply
E-Mail Mailboxes (or Folders)
            Most E-Mail systems provide
             standard mailboxes (or folders):
             –   InBox (mail received)
             –   OutBox (mail sent)
             –   Draft (unfinished messages)
             –   Trash (retrievable disregarded mail)
            They also usually allow for custom
             folders to be created - eg. Archive,
             Friends, Business etc.
How to Find an E-Mail Address
                If you know the person,
                 ask them
                If you wish to contact a
                 company, business or
                 department, check if they
                 have a website
                If it is someone specific
                 overseas do a people
                 search using Four11 or
                 AltaVista
         Attachments to E-Mail
 Virtually   any file can be attached to E-Mail
  –   Word Processing documents
  –   Data files
  –   Photos or graphic files
  –   Executable programs
 These  files can then be downloaded by the
  receiver and opened in their native program
 To reduce the size of attached files, a
  compression utility like PKZip (WinZip) or
  Stuff-It (Mac) can be used
        Sending Attachments
 Usually,   just click the Attach button
  – The file to be attached should already be
    prepared

 Ifusing HotMail or Yahoo Mail, your
  browser must be ‘Upload Enabled’

 The attached file will be transferred to the
  mail server and then sent with the message
Retrieving a Received Attachment
 With Netscape Mail or Eudora, the
 attachment is usually automatically
 downloaded to a specified local folder

 With Yahoo or HotMail, clicking on the
 attachment hyperlink will allow you to
 download it
E-Mail Viruses    It is NOT possible to get
                   a virus from an E-Mail
                   message
                  However, viruses can be
                   present in attachments
                     – Word documents could
                       have a Macro Virus
                     – Programs could have
                       executable file viruses or
                       be ‘droppers’ for boot-
                       sector viruses
                    Make sure you have a
                     current virus scanner
          Mailing Lists (Listservs)
 There  are organised mailing lists hosted on
  certain Internet servers that cater for people
  interested in discussing just about any subject
 Users subscribe to the desired mailing list by
  sending a request to the list manager
 All E-mail sent to the list is distributed
  automatically to all subscribers
 Responses can then be made to either an
  individual or to the entire list
 List members may come from all over the world
What is Netiquette?
           When sending messages
            to many people, read your
            message carefully before
            clicking ‘Send’
           It is easy to offend people
            without knowing due to
            cultural differences or the
            perceived ‘tone’
           Take the time to find out
            more about ‘Netiquette’
         Censorship and Privacy
 The  Department-supplied school account is a
  ‘shared’ account and is therefore NOT private
 There is no real guarantee that you will see
  mail that has been sent to you
 If students use the school account, all mail
  sent must be authorised by a staff member
 Students and staff may wish to establish free
  Web-based mail accounts for use at school
 Cyber Patrol will censor both incoming and
  outgoing mail
Internet User Access Policy
                 The School’s Internet
                  User Access Policy must
                  incorporate E-Mail use

                 It should be re-evaluated
                  in light of the
                  introduction of free
                  Web-based E-mail
                  services

								
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