HOW TO SPAM-PROOF YOUR
LIFE
by Joe Halbrook
http://www.CleanMyMailbox.com
Have you ever thought about how much time you spend each day, week,
or month scanning your e-mailbox to discern the "good stuff" amidst
all the other "refuse?"
"The average corporate employee spends an hour a day going through
their email. If just 1/6th of that time is spent identifying and
deleting spam, that's six minutes a day, or about 41 hours a year
-- more than a 40-hour work week!" - John Audette, I-Sales December
21, 2001 Issue #1474
(http://www.adventive.com/lists/isales/summary.html)
Add it up and, if you're like most people with even a moderate spam
(Unsolicited Commercial Email, also known as UCE) problem, you might
find that you're actually spending an hour or so weekly, maybe even
daily - having to invest your scarce time into such an unnecessary
task. I don't know about you, but I could sure find plenty to do
with an extra 10 to 25 hours a month.
And, if you own an on-line web site, store, or presence, you already
know that the amount of spam you receive is getting ludicrous. Over
95% of all incoming e-mail is spam these days. And the problem only
appears to increase with time.
What can be done, if anything, to reduce the amount of spam we have
to look at down to just a trickle? Anything?
Believe it or not, in just 30 minutes, one time, you can take measures
to insure that this can become a reality. At least a dramatic decrease
in the amount of spam can be achieved.
This is a short writing, but it's all you need to really and truly
spam-proof your life!
Here's some things that will help:
- Never publish a hard-coded mailto: A HREF tags on your web
site.
One of the most common ways that spammers collect (harvest)
email addresses from web sites is by using spambots (called
robots, spiders, crawlers) which visit your web site, hop from
link to link collecting phrases which have an '@' character
in them - those mailto: email addresses - your email addresses!
But, there are numerous techniques that provide an alternative
way of displaying your email address and, at the same time,
fooling the spambots so they don't find them.
Here are just a couple of those techniques:
- Using SSI (Server-side Includes)
By using SSI calls to a CGI script on your server, you eliminate
the need to code a mailto: A HREF tag.
Example:
Contact us here: <!--#exec cgi="/cgi-bin/print_addr.pl"-->
In the /CGI-BIN subdirectory of your web server, you simply
include a short Perl script to display the A HREF tag:
#!/usr/bin/perl
print "Content-type: text/html\n\n";
print "your_addr\@yourdomain.com";
exit;
When the browser processes the SSI line above, it will call
the Perl script (runs on almost all web servers) which will
output the A HREF tag dynamically, so that when spambots
visit your web pages, they never see the '@' sign, and thus
can't harvest your email addresses.
- Using Javascript
With just a smidget of Javascript code, you can provide
client-side protection against roaming spambots and harvesters.
Just place this code in your HTML pages wherever you want
to display the email addresses:
<script language="JavaScript">
<!--
document.write("your_addr" + "@" + "yourdomain.com");
// -->
</script>
- Use a contact form on your web site, instead of an email
address.
When you provide an HTML form for email contact with your
site visitors, not only can you manage the incoming correspondences
more efficiently by having them come to one place, but you
also remove the possibility of roving spambots harvesting
email addresses on your web pages.
There are many HTML form-to-email scripts out there, and
most of them are FREE. Just search any search engine using
the terms "formmail" or "form+mail". You should be able
to find a simple script and install it in no time.
If you need assistance, there are thousands of references
on how to install CGI scripts, or you can even hire a web
developer, who should be able to set it up in under an hour.
- Never use your "main" email address when you subscribe to
a new publication.
Always use an address that you can either abandon, or filter
on if you try to unsubscribe and it's not honored, or you start
to receive a lot of spam after subscribing to a publication.
Some server-side programs allow you to create "throw-away" alias
addresses for this very purpose. See 3) c) below.
- Utilize an anti-spam program for your POP3 mailbox.
By anti-spam program, I mean a program that filters out your
incoming UCE (spam) mail so you don't have to waste time doing
it manually.
In this area, there are currently three common methods of filtering
incoming spam from your mailbox. Two of the three methods involve
downloading all the UCE along with the "good" items, but filtering
UCE, as it comes in. The third method involves an outsourcing
solution. You decide which is best for your situation:
- Email software setting modifications.
This technique involves you manually setting up filtering
criteria to catch incoming UCE. It also involves you manually
filtering Sender addresses of those UCE that get past your
filters.
This technique also requires that you periodically update
your filtering rules as the spammers find their way around
them. Many times this is at least weekly.
- Client workstation anti-spam software.
This technique involves running a filtering program on your
workstation "against" your mailbox, as you pull in the incoming
mail.
Again, this technique will require frequent updating of
the filtering rules and blacklist databases - much like
you have to update your virus database software periodically.
It also requires processing time on your PC workstation.
If you don't have a "large" spam problem, this may be negligible.
If you do, it can take between 2 to 6 times the amount of
time to pull your mail in, in order for it to interrogate
each incoming item.
The price is right: between free and under $100. You can
find it at most software download sites.
- Server-side anti-spam techniques.
This, in my opinion, is the best practice for eliminating
UCE spam BEFORE it enters your email software (InBox).
With this technique another kind of bot (I call it an anti-spambot)
will visit your mailbox periodically throughout the day and
night, examine each item in your mailbox, weigh it's probability
of being UCE spam, then remove it from your mailbox BEFORE you
have to see it, if it is likely UCE spam.
The better services of this type will not permanently delete
the incoming mail, but will place it in another source, for
you to review, should you ever need to recover an item that
was accidentally filtered.
In this kind of program or service, the administrators will
take care of the ever-changing filtering criteria for you, so
you save time in that area.
Sounds good, huh?
There is one modification that you have to make in order to
utilize such a technique: If you have your email software setup
to check and pull in your mail on intervals of say 5, 10, or
15 minutes, then you will have to alter those settings to something
like every 20 to 60 minutes.
This is because the anti-spambot will only visit your mailbox
so many times a day (or per hour). So, if you're pulling mail
off the server before the bot gets to examine it, it will defeat
the purpose.
Well, there it is. Just a few suggestions that might seem simple,
but can save your hours of time each month in having to deal with
UCE spam.
Like the ole sayings goes: "Where there's a will, there's a way."
If you're willing to spend 30 minute now, you can enjoy a spam-free
life in the not too distant future! And the savings in time could
be substantial!
Thank You for spending the time to read this. I hope you can make
use of these suggestions and implement a winning strategy.
Sincerely,
Joe Halbrook
http://www.CleanMyMailbox.com
"We eliminate spam while you save time"
p.s. Know someone else who complains about spam? Why not pass this
information on to someone else who could use it? It's as easy as
forwarding it right now.
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