study guide: email power pt. - Quia

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7 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

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It can take days to send a
letter across the country
and weeks to go around
the world.

To save time
and money, more and
more people are relying on
electronic

mail.
It's faster,
easy, and much cheaper
than the using the post
office.


Harness E
-
Mail:

How It Works


Sending and Receiving Messages

To receive e
-
mail, you need an account
on a mail server. This is similar to having
a street address where you receive
letters.

One advantage over regular mail
is that you can retrieve your e
-
mail from
any location on earth, provided that you
have Internet access.







What is
e
-
mail?

In its
simplest form,
e
-
mail is an
electronic message sent from
one device to another
. While
most messages go from
computer

to computer,
e
-
mail
can also be sent and received
by
mobile phones
, PDAs and
other devices.

In a very limited way, email was first
introduced to the public in 1971.

With e
-
mail, you can send or receive personal and
business
-
related messages with
attachments
,
such
as
photos

or formatted documents. You can also
send music, video clips and software programs.


Be very careful about the emails you send because they can be
retrieved after you have erased them.

Let's say you have a small business
with sales reps working around the
country. How do you communicate
without running up a huge phone bill?
Or what about keeping in touch with far
-
flung family members? E
-
mail is the
way to go. It's no wonder
e
-
mail has
become the most popular service on the
Internet.


The "subject line" in an email tells the
receiver what the message is about.

At one time, Internet e
-
mail was good only for text
messages. You couldn't send attachments, such as
formatted documents.
With the advent of
MIME
, which
stands for
Multipurpose Internet Mail Extension
, and
other types of
encoding

schemes, such as UUencode,
not only
can you send messages electronically, but you
can also send formatted documents,
photos
, audio and
video files
. Just make sure that the person to whom
you send the attachment has the
software

capable of
opening the file.


Follow the Trail

Just as a letter makes stops at
different postal stations along
the way to its final destination,
e
-
mail passes from one
computer, known as a
mail
server
, to another as it travels
over the Internet.






Once it arrives at the destination
mail
server
, it's stored in an
electronic mailbox until the
recipient retrieves it.

This whole
process can take seconds,
allowing you to quickly
communicate with people around
the world at any time of the day
or night.


Once you connect to your mail
server, you just
download

your
messages to your computer or
wireless device
.


e
-
mail
-
based communication is still the most
widely used written medium in businesses

To send
e
-
mail
, you need a
connection to the Internet and
access to a mail
server

that
forwards your mail.

The
standard protocol used for
sending Internet e
-
mail is
called
SMTP
, short for
Simple Mail Transfer
Protocol
.


It works in conjunction with
POP
--
Post Office Protocol
-
-
servers.
Almost all Internet
service providers and all
major online services offer at
least one
e
-
mail address

with every account.


When you send an e
-
mail message,
your
computer

routes it to an SMTP
server.

The server looks at the e
-
mail address (similar to the address
on an envelope), then forwards it to
the recipient's mail server, where it's
stored until the addressee retrieves
it.
Remember, you can send e
-
mail
anywhere in the world to anyone
who has an e
-
mail address.







Cons

Most business professionals today spend
between 20% to 50% of their working time
using e
-
mail
:
[
reading, ordering, sorting, ‘re
-
contextualizing’ fragmented information and of
course writing e
-
mail. E
-
mail can lead to some
well
-
known problems:















Use of e
-
mail is increasing, due
to trends of
globalization

distribution of organizational
divisions, outsourcing, among
others.










For security reasons, you should change your email
password periodically to prevent hackers or spammers
from causing your computer to have problems.


Spam
: E
-
mail is a push
-
only medium:
control of who receives information lies
primarily with the sender. This can lead to an
overflow of unwanted or irrelevant
information.












Receiving too much e
-
mail (spam) can cause you
computer to crash.

Spamming and computer viruses

The usefulness of e
-
mail is being threatened by
four phenomena:

1) e
-
mail bombardment

2) spamming

3) phishing

4) e
-
mail worms.






phishing

is the criminal act of using a “fake” web
site [THAT LOOKS ALMOST IDENTICAL TO A WELL
KNOWN SITE.] The dishonest site tries to get
information (bank account numbers, social security
numbers, etc) for the purpose of stealing identities
or bank funds.



Spamming is unsolicited commercial e
-
mail.

Because of the very low cost of sending e
-
mail, spammers can send hundreds of millions
of e
-
mail messages each day over an
inexpensive Internet connection.

Hundreds of
active spammers sending this volume of mail
results in information overload for many
computer users who receive voluminous
unsolicted email each day.







E
-
mail worms use e
-
mail as
a way of replicating
themselves into vulnerable
computers.

Although the first
e
-
mail worm affected UNIX
computers,
the problem is
most common today on the
more popular Microsoft
Windows operating system.

The combination of spam
and worm programs results
in users receiving a constant
drizzle of junk e
-
mail, which
reduces the usefulness of e
-
mail as a practical tool.






WORDS TO KNOW!!!!!

“replicating

to copy or imatate

“vulnerable”

at risk, unprotected


Privacy concerns






E
-
mail privacy, without some security precautions, can
be compromised because:


e
-
mail messages are generally not encrypted;


e
-
mail messages have to go through intermediate
computers before reaching their destination, meaning
it is relatively easy for others to intercept and read
messages;



the Received: headers and
other information in the e
-
mail can often identify the
sender, preventing
anonymous communication.


many Internet Service
Providers (ISP) store copies
of your e
-
mail messages on
their mail servers before
they are delivered. The
backups of these can remain
up to several months on
their server, even if you
delete them in your mailbox;









E
-
mail started in 1971
as a way for multiple
users of a time
-
sharing
mainframe computer
to communicate.



e
-
mail
-
based communication is
still the most widely used
written medium in the
business

world

today.



Ray Tomlinson

gave society one of
the greatest communication tools in
history.
He invented email back in
1971
--

essentially fostering global
business communication and
turning the Internet into a digital
kitchen table for far
-
flung family
members.

A Conversation

With The Inventor

Of Email



To extend the addressing
to the network, Tomlinson
chose the "commercial at"
symbol to combine the
user and host names,
providing the naturally
meaningful notation
"user
@
host" that is the
standard for email
addressing

today.