EMAIL ALIASES AND MAILBOXES ARE NOT INTERCHANGEABLE. USING A MAILBOX
SIMPLY TO FORWARD EMAIL COULD BE SEVERELY LIMITING YOUR EMAIL
FLEXIBILITY.
Whether you're setting up a website or an ISP email account, it's
important to know the functional differences between email aliases and
mailboxes. They are not interchangeable, and using a mailbox simply to
forward email could be severely limiting your email flexibility.
First, it would help to note the difference between a POP (Post Office
Protocol) account and an SMTP (Simple Mail Transfer Protocol) account.
Although the ability to send and receive email comes with most email
accounts, receiving email is normally accomplished through a POP
(input) account, while sending email is an "SMTP" (output) feature.
Mailboxes and email aliases deal with the POP (receiving) aspect of
your email. A POP account is essentially a mailbox. As the term mailbox
implies, it's like a real-life mail box, a place to receive your mail
(a major difference being that email travels at the speed of light
while regular mail sometimes never sees the light of day.) Once in your
mailbox, email just sits there until you "retrieve" it. (Some services
allow mailboxes to be forwarded, but then you'd need another mailbox to
receive the email in.)
This is where setting up your "email client" (Outlook, Netscape email,
Eudora, etc.) comes in. By setting up the mail-server, ID and password
parameters, you tell the program where to retrieve your email from.
Many email clients even give you the option to "leave email on server
after retrieval." This means that you can retrieve your email (with the
"leave email ..." option on) on your laptop, when you're away from
home, for example, then later, when you get home, retrieve the same
email messages on your desktop (where you might want to keep a more
permanent record of your email).
Once you retrieve email with the "leave email..." option off (perhaps
on your desktop, in the above example), the same email messages are no
longer available for retrieval -- they have been deleted from the
server.
Email aliases are a different animal. Let's say you have a website
mysite.com and you've set up a mailbox "mybox" -- so your email address
is now mybox@mysite.com. Now you decide that your cousin, who works for
you, also needs an email address. So you set up an email ALIAS
mycousin@mysite.com. (If the only reason you hired him is to make your
aunt in Wisconsin happy, you might give him an email address like
myauntscousin@mysite.com.)
This email alias, mycousin@mysite.com, MUST be forwarded to a mailbox,
or another alias which eventually goes to a mailbox. This is because
aliases do not have a "box" of their own for email to accumulate in --
they are simply forwarding tools.
As a result, if mycousin@mysite.com were forwarded to mybox@mysite.com,
when you retrieve your email for mybox@mysite.com you will
automatically also get the email for mycousin@mysite.com. Using this
approach, you can have many aliases forwarded to one mailbox.
Why, then, you might ask, would anyone ever need more than one mailbox? Good question. (Why didn't I think of that?)
One reason might be, let's say your aunt from Wisconsin comes to work
for you and you want to give her the email address myaunt@mysite.com.
(If the only reason you're hiring her is because your cousin can't live
without her, you might want to give her the email address
whatapain@mysite.com.) If you make her email address an alias (as
opposed to a mailbox), then every time you retrieve your email from
mybox@mysite.com, you'll also get her email, which was sent to
myaunt@mysite.com. What's worse, if you give her access to the mailbox
so she can retrieve her own email, she'll also see your email.
Technically, there's nothing wrong with this. But from a family
relations standpoint, this may lead to "technical difficulties" of
another kind.
So, you make myaunt@mysite.com a mailbox, not an alias. (The menu
options for setting up aliases and mailboxes can vary from one service
to another, so I won't get into that.) Now she can retrieve her email
directly from myaunt@mysite.com and you can still retrieve your email
from mybox@mysite.com, and neither one of you would see nor interfere
with the other one's email. This would probably be the best solution --
because the last thing you want is to find out that your aunt is not
really your aunt, your cousin is not really your cousin, and that you
were adopted, and you're not even you. This can't be good for business.
Email accounts given to you by an ISP (like Earthlink, Verizon, etc.)
are usually much simpler in construction and less flexible. In a simple
setup, you might get one mailbox with several aliases that
automatically get forwarded to the mailbox. If this is good enough for
you, there's no need to mess with your website's email features. One
serious downside to this is if you change ISPs, you'll have to give
people your new email addresses. While if you use domain-based email
addresses and then change your web hosting company, presumably your
domain name will go with you and your old email addresses will remain
valid.
The only question remaining now is, if you change your ISP, you change
your hosting company, and you change your business location, do your
aunt and cousin come with you? Even tech support can't answer this
question.
Josh Greenberger: As a computer consultant for over two decades, developed software for NASA's Goddard Institute of Space Studies, AT&T, Charles Schwab, Bell Laboratories and Chase Manhattan Bank. Letters and articles have appeared in The New York Post, New York Daily News, New York Times, Village Voice, Jewish Press, Hamodia and others. Topics of articles and letters have ranged from humor to science to politics to current events. Wrote a book disproving the theory of evolution, available at Amazon.com and other online and retail outlets. Wrote several screenplays.
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