Understanding the Technology of Email

In the course of my work with people online, I oftenprotected, it is often possible for someonewho
run into awall of confusion when I speak of theknows what they are doing to read your email by
different types of emailavailable. People will ask helpusinganother application to open your mail folders.
with their email accounts. Ialways ask, "do you have- All messages are stored on your hard drive eating
a web mail account or a POP3 emailaccount?"up what issometimes very valuable space.
In my mind, it has always been a rather simple- Email folders can become corrupted and sometimes
question. Yet,the truth is that the answer is not solost forever.
simple to most Internetusers. If you are scratchingTo get a much more detailed view of exactly how
your head trying to figure outjust what I am talkingPOP3 emailworks, there are actually two different
about, you will be able to answer thequestion withoutservers running ona server machine. One is called the
confusion by the time you finish reading thisarticle.SMTP Server, where SMTPstands for Simple Mail
Real quickly, I would like to outline for you theTransfer Protocol. The SMTP serverhandles outgoing
distinctionsbetween the two types of email so thatmail. The other is a POP3 Server, where POPstands
you can begin tounderstand the differences betweenfor Post Office Protocol. The POP3 server
the two formats.handlesincoming mail. The following link provides a
I will begin with POP3 since that is the one that islook at exactlyhow POP3 email works in detail:
often themost confusing and least known type.Web-based email is the type that people are most
POP3 email accounts require a piece of softwarefamiliar with.
called an emailreader in order to send and receiveWhereas POP3 email requires an email reader, web
email. Common applicationsthat serve as emailmail onlyrequires a browser like Netscape, Internet
readers are: Netscape Messenger, OutlookExplorer, Opera,
Express, Outlook, AOL email, Pegasys, Eudora, JunoNeoPlanet or Enigma.
and a fewothers.Common brands of web-based email include: Yahoo!,
While email readers are often bundled with InternetHotmail,
browsers,they are actually a separate piece ofAltaVista, Lycos, USA, Netscape.net and thousands
software. With a reader,when you are ready toof others.
check your email, you start your emailsoftware. OnceThe Advantages of web-based email includes:
it opens, click a button on your toolbar todownload- You only need a browser to check your email from
your email and wait for your email to downloadany computeron the planet.
toyour computer so that you can begin reading it.- Your email is 100% secure from folks browsing
When you are ready to create a new email to sendyour computer,unless the person acquires your
to others, youhave the options of Reply, Forward, orpassword.
New Message. Which evermethod you use, you must- Email is stored on someone else's server.
click the correct button inside yoursoftware to- You do not have to wait for your email to
create the new message.download.
Advantages of POP3 email:The Disadvantages of web-based email include:
- You can read your mail without being logged onto- Most web-based email accounts have a size limit.
the Internet.- Some accounts have a limit to the size of an
- You may create new messages to send to othersindividual email.
without beinglogged onto the Internet.- Emails of more than 25kb are often changed into
- All messages are stored on your hard drive on yourattachments.
owncomputer.- Getting an attachment out of one of these emails
- There are often no size limits on the email youis sometimesvery difficult.
send orreceive.- Most of these accounts have spam filters that send
- There is not a maximum size on your mailbox,requestedezines into the spam folder.
except asdetermined by the size of your hard drive.- Nearly all of these accounts have lots of advertising
- There is no advertising when you read your emailwhileyou are reading your mail.
unless youare using an Adware email reader like- You must be online to view your email.
Eudora.For years, your only choice has been POP3 or
- Opening attachments is a quick and painlessweb-based email. Inthis last couple of years, a new
process.type of email reader applicationhas come onto the
Disadvantages of POP3 email:scene. This type of application is an emailretrieval
- Opening attachments is a quick and painlesssoftware which allows you to check your mail on
process, unlessthe attachment has a virus payload inboth
it.POP3 and web-based email accounts. This software
- If you have JavaScript enabled in your email reader,provides youmost of the functionality of POP3 email
you mightbe target of rogue JavaScript embedded inreader software, but itpermits you to check both
an email.types of email accounts at the sametime.
- All messages are stored on your system, andThere are several different programs available in this
privacy disappearswhen someone sits down at yourgenre.
machine. Even if your emailreader is password