Spam
Blocking
SPAM
The word SPAM was originally created by
Hormel Foods, maker of the canned "Shoulder Pork and hAM. Later
Monty Python's Flying Circus performed a
spam skit in which a restaurant serves its food with loads of spam,
and the waitress repeats the word several times in describing how much
spam is in the items. When she does this, a group of Vikings in the
corner start a song: "Spam, spam, spam, spam, spam, spam, spam, spam,
lovely spam! Wonderful spam!" Thus the meaning of the term is at
least “something that keeps repeating and repeating to great
annoyance”.(1)
How Big is the Problem?
|
As of 2003, the following statistics were derived
from a number of different reputable sources including: Google,
Brightmail, |
|
Jupiter Research, eMarketer, Gartner, MailShell, Harris Interactive,
and Ferris Research. (2) |
|
Email Statistics |
|
 |
|
q |
Daily emails sent |
31 billion |
|
q |
Daily emails sent
per email address |
56
|
|
q |
Daily emails sent
per person |
174 |
|
q |
Daily emails sent
per corporate user |
34
|
|
q |
Daily emails
received per person |
10
|
|
q |
Email addresses per
person |
3.1 average |
|
q |
Cost to all
Internet Users |
$255 million |
|
|
Email Pornography
Statistics |
|
 |
|
q |
Daily porn emails
sent |
2.5 billion |
|
q |
Daily porn emails
sent per person |
4.5
|
|
|
Spam Statistics |
|
 |
|
q |
Email considered
Spam |
40% of all email |
|
q |
Daily Spam emails
sent |
12.4 billion |
|
q |
Daily Spam received
per person |
6 |
|
q |
Annual Spam
received per person |
2,200 |
|
q |
Spam costs to all
non-corp Internet Users |
$255 million |
|
q |
Spam costs to US
corporations in 2002 |
$8.9 billion |
|
q |
States with
Anti-Spam Laws |
26 |
|
q |
Email address
changes due to Spam |
16% |
|
q |
Estimated Spam
Increase by 2007 |
63% |
|
q |
Annual Spam in
1,000 Employee Company |
2.1 million |
|
q |
Users who reply to
Spam email |
28% |
|
q |
Users who purchased
from Spam email |
8% |
|
q |
Corporate email
that is considered Spam |
15-20% |
|
q |
Wasted corporate
time per Spam email |
4.5 seconds |
|
|
Type of Spam
Categories (% of total Spam) |
|
 |
|
q |
Products |
25% |
|
q |
Financial |
20% |
|
q |
Adult |
19% |
|
q |
Scams |
9% |
|
q |
Health |
7% |
|
q |
Internet |
7% |
|
q |
Leisure |
6% |
|
q |
Spiritual |
4% |
|
q |
Other |
3% |
| |
|
|
|
Most
Annoying |
|
|
q |
Pornography |
91% |
|
q |
Mortgage and Loans |
78% |
|
q |
Investments |
68% |
|
q |
Real Estate |
61% |
|
q |
Software |
41% |
|
|
|
The Cost to US
Corporations (3)
SPAM
Blocking Solutions
Presented below is a
comparison list of some of the more popular SPAM blocking utilities
available today as compiled by
Spam Filter Review (http://www.spamfilterreview.com/).
These products range in price from $5 to $40.



How SPAM Filters Work
Presented below is a diagram highlighting
the various types of information, data, and attributes today’s top spam
blocking systems check in order to block spam. You can read about these
attributes in more detail at the following web site:
http://www.ealaddin.com/pdf/esafe/esafe_antispam_whitepaper.pdf.


Bayesian SPAM Filters
Some argue that a better approach for
identifying SPAM is to employ a Bayesian filer system in which your
current spam messages are statistically analyzed to create a basis for
rejecting future Spam. This is important because a CPA firm will not
want to use the same filtering methodology as a doctor’s office that
receives numerous e-mails discussing breast cancer. With Bayesian
filtering, a unique and individual algorithm is created and continually
updated based on the e-mails you receive and those you reject. Over
time, your system learns which types of e-mails to reject automatically.
Yet, another measure you can take to block SPAM is to set up rules in
your e-mail or turn on spam and adult content filtering in your e-mail
client. This is discussed in more detail under e-mail tips and tricks.
Spam Inspector 4.0
Based on our review of the various products
available today, we found that Spam Inspector 4.0 was our favorite
solution and therefore earns our top recommendation. We liked the power,
ease of use, and price tag; but we were swayed by the various high
praising reviews and awards this product has received. Here are two
sample screen shots from this product. Learn more about Spam Inspector 4.0
here:
http://www.giantcompany.com/(jzw5nt452vfw4mq0q4uedr45)/default.aspx


Spam Laws
There are numerous laws
against SPAM at many levels of government, as enacted by 11 counties and
the European Union. A complete listing of these laws is summarized at
this web site:
http://www.spamlaws.com/us.html
The most recent law to be enacted is the
CAN-SPAM Act of 2003 as introduced by Senators
Conrad R. Burns (R-MT) and
Ron Wyden (D-OR) in April 2003, with minor changes from the previous
year's version,
S. 630 (2002). Two other bills (S. 1231
and
S. 1293) were subsequently merged into it. The final version was
approved by the Senate in November 2003 and by the House of
Representatives in December 2003, and was signed into law by President
Bush on December 16, 2003. The Controlling the Assault of Non-Solicited
Pornography and Marketing Act requires unsolicited commercial e-mail
messages to be labeled (though not by a standard method) and to include
opt-out instructions and the sender's physical address. It prohibits the
use of deceptive subject lines and false headers in such messages. The
FTC is authorized (but not
required) to establish a "do-not-email" registry. State laws that
require labels on unsolicited commercial e-mail or prohibit such
messages entirely are pre-empted, although provisions merely addressing
falsity and deception would remain in place. The CAN-SPAM Act went into
effect on January 1, 2004. Violators can be sent to jail for periods up
to 1, 3 or 5 years depending on the type and volume of the SPAM
violation.
These measures have helped, but have not
stopped SPAM completely because much of the SPAM originates from
overseas where there are no laws prohibiting such activities. Some US
companies have even defiantly set up their spamming operations overseas
to defy capture.
E-Mail Providers Fight Back
In an effort to deter SPAM, many of the
world’s top e-mail providers (such as EarthLink, Microsoft, AOL, and
COMCAST) banded together and implemented tougher controls on sending
e-mails. Basically these providers required all e-mailers to log in and
authenticate their identities upon sending each e-mail. For a short
time, people around the world were annoyed as they had to reconfigure
their systems to accommodate this new higher level of e-mail. The effect
has been to help stem the growing number of e-mails, but this too has
not stopped the professional spammers.
Stop SPAM Before it Starts
There are several solutions that help deter
SPAM and spyware. One that has been widely applauded is
AdAware. AdAware is a privacy tool that scans your memory, registry,
hard, removable and optical drives for known data-mining, aggressive
advertising, and tracking components. It then lists the results and
offers to remove or quarantine the components. The program detects a
wide range of adware/spyware related issues and can be updated with the
latest signatures via the built-in update utility. This product can be downloaded for free from
http://lavasoftusa.com/software/adaware and a more automated version of
this tool is available for $30.
Another solution for protecting your computers from spyware is
Spybot
Search and Destroy available from a host of sources including CNET's
www.download.com. Though the interface requires a little more
manipulation than Adaware, many users have had great success using this
free utility. Spybot seeks out malicious spyware much like other
programs however rather than simply delete or quarantine the affected
files, Spybot can also insert blank or "dummy" data into the information
gathering fields of resident spyware thus rendering them ineffective and
useless. Pictures below is a sample of the scanning page for Spybot
Search and Destroy v1.3.

Blocking Pop-Ups
There are numerous pop up
blocking tools available in the market today, but the one we recommend
most is the Google pop up blocker which can be downloaded here:
http://toolbar.google.com/. This tool installs in 20 seconds and
does an excellent job of stopping those pesky pop-ups.

Conclusion
The world is fed up with SPAM and enormous
efforts have been taken to fight SPAM. It is estimated that SPAM costs
US corporations alone nearly $9 billion a year. Still spammers are
persistent and pesky, and they continue to find new ways to annoy us
all. The government has stepped up efforts to reduce SPAM through new
laws and legislation; therefore you should be careful to examine your
e-mail practices to make sure you are in full compliance. In the end,
your best step is still to download and install AdAware, set up some
e-mail rules, and purchase and install a SPAM filtering program. Our
favorite SPAM tool is
Spam Inspector 4.0 which sells for about $30.
Recommendations
q Download and install Ad-aware for free.
q
Set up rules in your e-mail client to
delete obvious unwanted e-mail.
q
Purchase and install a SPAM blocking tool
such as SPAM Inspector 4.0 for $30.
q
Make sure you do not violate the new
anti-spamming laws, especially the CAN-SPAM Act of 2003.
End Notes
- Origin of the word spam by Brad Templeton -
http://www.templetons.com/brad/spamterm.html
- Spam Statistics -
http://www.spamfilterreview.com/spam-statistics.html
- Aladdin Anti-Spam White Paper -
http://www.ealaddin.com/pdf/esafe/esafe_antispam_whitepaper.pdf
- Spam Laws -
http://www.spamlaws.com/us.html
- A Plan for Spam by Paul Graham –
http://www.paulgraham.com/spam.html
- Better Bayesian Filtering by Paul Graham -
http://www.paulgraham.com/better.html
- Review of Spam Inspector 4.0 -
http://www.spamfilterreview.com/spam-inspector-review.html
- END -