PC101-Personal
Computer 101
What
causes SPAM
and how can I avoid
getting it?
Spam is similar to postal junk mail in
that it is
unsolicited, bulk sales information. Spammers create commerical
sales emails and then email them to millions of people at one
time. They get email addresses by buying lists from other
companies, stealing them from websites or sometimes just by guessing
what they might be with computer programs. Many of the emails
fail to get delivered and
many more are not read, but because they distribute them in such large
numbers, and because there is always someone who reads and responds to
them, they make good money doing it, hence they exist.
Avoiding Spam, which can be a real problem for many,
especially
companies trying to conduct business via the internet, is not easy to
do, as the Spammers adapt to all new methods to restrict them with
technology and lobby to prevent any effective legal methods.
Most ISP's these days come with some form of SPAM filter for
preventing SPAM from ever getting to your Inbox. Most
require you to both turn them on and do some basic configuring of how
aggressive you want the filter to be. The concern here is that
non-SPAM email may get tagged incorrectly and you never get
it. However the filters have gotten better over time and as
I said, you can usually "tune" them to your desire. Often they
have WHITE and BLACK lists,
which allow
you to either specifically Include certain email addresses or Exclude
them. You can usually use wild cards (*) to cover whole ranges of
potential emails, e.g. *@salesoffice.com
which if in your BLACK list would exclude ALL email from salesoffice.com.
If you use your browser's builtin email SW then it also
probably has a SPAM filter.
The latter versions of Netscape® Mail
for example, has Junk Mail Controls and a
SPAM filter called Message Filters... Using the Message Filters you
can send emails automatically to your Trash folder based upon keywords
in the Reply email address, Subject, or even the text in the message
body (e.g "university diplomas" or "increase penis size").
Should I Open email that looks strange to me?
Generally, if you have a good working anti-virus program running then
you can safely Open most all email, as the anti-virus program should
check the email for viruses as it is being downloaded from the mail
server to your computer, and if you read your mail on the web mail
server using some kind of Web Mail program, then you don't have to
worry because the email is there (on the server) and
not on your computer.
However, if the email is on your computer, you should not click on any URL links, graphics or other attachements
in the email if you do not know the Sender. Because, for example,
you might click on a link in the
email that says something like: "Hey, check out this cute puppy
picture!" and the link is titled: "brownpuppy.jpg", but in fact if
you click on it, you actually install a virus onto your computer via an
executable or other sneaky method hackers use.
Often Spam email is obviously different from normal email,
i.e. it has random sentences at the bottom and sometimes top of the
email; whatever they are selling is often misspelled to avoid
anti-spam filtering programs; it will have random letters/characters
along the left or right border; the Subject will be an attention
grabbing one, like "Your perscription renewal in now due"; they
will have phony return addresses or none, or it will be your email
address.
Finally, you can report spam to an anti-spam website like
Spamcop®. Spamcop figures out the true origin of the
email and gives you the option to report the email as Spam to the
ISP/email administrators. See the Security section of the Links and References
page for joining information.
GENERAL RULES FOR AVOIDING
SPAM
- NEVER reply to, respond to or opt-out of, SPAM
emails.
- Create a freebie email address (e.g hotmail)
to use when websites demand a working email address from you but you do
not care to ever hear from them
- Be selective and limit where you give your main email
address - every place you give it could be a source for an email list.
- Use your ISP, Mail Service & browser SPAM filters
and programs.
- If you open email from strangers that are suspicious
then do NOT click on Links in such emails or open attachments.
Got
questions you would like answered? Yes


keoni@isp.com