Email and VOIP
Definitions
• Storage- the action or method of storing something for future use.
• Forward system• Address book- A book for recording the names, addresses, and
telephone numbers of friends, acquaintances, etc.
• Attachment- An extra part or extension that is or may be attached to
something to perform a particular function.
• Multiple recipients- The capability of sending e–mail and instant
messages to more than one user at a time by listing more than one e–
mail address on a line. Delimiters such as commas or semicolons are
used to separate the e–mail addresses. 2.
TO
CC
BCC
SUBJECT
BODY OF EMAIL
FROM
Benefits and drawbacks of email
Advantages
Disadvantages
Emails are delivered extremely fast when
compared to traditional post.
The recipient needs access to the Internet to
receive email.
Emails can be sent 24 hours a day, 365 days a
year.
Viruses are easily spread via email attachments
(most email providers scan emails for viruses on
your behalf).
Webmail means emails can be sent and received No guarantee the mail will be read until the user
from any computer, anywhere in the world, that logs on and checks their email.
has an Internet connection.
Cheap - when using broadband, each email sent
is effectively free. Dial-up users are charged at
local call rates but it only takes a few seconds
(for conventional email, eg text only) to send an
email.
Phishing - sending an email to a user falsely
claiming to be a legitimate company to scam the
user into providing information, such as personal
information and bank account numbers on a
bogus website. The details will then be used for
identity theft.
Emails can be sent to one person or several
people.
Spam - unsolicited email, ie junk mail.
Simple Mail Transfer Protocol (SMTP)
• Simple Mail Transfer Protocol is an Internet standard for electronic
mail transmission. First defined by RFC 821 in 1982, it was last
updated in 2008 with the Extended SMTP additions by RFC 5321 which is the protocol in widespread use today.
Post Office Protocol 3 (POP3)
• A standard protocol used to retrieve e-mail stored on a mail server
Internet Message Protocol (IMAP)
• Internet Message Access Protocol (IMAP) is a method of accessing
electronic mail or bulletin board messages that are kept on a mail
server. IMAP permits a "client" email program to access remote
message stores as if they were local.
History and Information about the email
• Computer engineer, Ray Tomlinson invented internet based email in
late 1971. Under ARPA net several major innovations occurred: email
(or electronic mail), the ability to send simple messages to another
person across the network (1971). Ray Tomlinson worked as a
computer engineer for Bolt Beranek and Newman (BBN), the
company hired by the United States Defence Department to build the
first Internet in 1968.
VOIP
• The acronym for VOIP is voice over internet protocol
• Short for Voice over Internet Protocol, a category of hardware and
software that enables people to use the Internet as the transmission
medium for telephone calls by sending voice data in packets using IP rather
than by traditional circuit transmissions of the PSTN.
• Most VoIP services will run on Mac or Windows. You should be running a
version of the operating system that is not more than two versions behind
the current version. For Macs, that is OSX 10.4, or Tiger, and for Windows,
that is Windows XP. Long-term stability and support is available in newer
systems over older systems. In some cases, you may be able to go back as
far as OSX 10.3.9, or Panther, or Windows 95. Linux is supported by a few
VoIP services. Skype, for example, has a version compatible with Linux.
Google Voice also offers a version for Linux.
VOIP continued