No More Spam?
If you have browsed
this website just a little you will see that there are a lot of
pages that have my email address on them. Now, hopefully, there
are less pages that have a direct email link than there were.
I have stolen an idea from someone who used it before me to reduce
future spam.
You may see that I now show email addresses as:
wilf dot james
at ntlworld dot com
- to use my own as an example.
This format is intelligible to humans but far less identifiable
to spammers' searching robots.
Another way is to create a small graphic
which shows your email
address in its usual form but does not offer a direct link to
an email address. This is also invisible to many spammers' robots.
The chances are that you would not be reading this if you have
never received any spam. I have worked out a way of dealing with
it that is relatively simple and effective with Netscape. You
can do something similar with Outlook Express as far as I know.
(I never use anything by Microsoft if I can avoid it.) I almost
have to use Windows (preferably 98SE) but there is no point in
using more rubbish than I have to.
Sort Your Emails
With Filters
With Netscape it is possible to use message filters to sort your
incoming emails. You can use both positive and negative filters.
For a positive filter you will need to create a folder that matches
something about the emails that you like to get. (E.g. Friends)
For a negative filter you will need a folder called Spam.
If you use filters in the normal way, you would need to read an
umwanted email normally to find something about it that will identify
it uniquely. I have found a way to avoid this as you will see.
Some spam emails
have subject lines that seem to be a series of strange letters
in no obvious sequence. Most of these letters can be produced
by holding down the left Alt key and typing in a number on the
numeric keypad that is on the right hand side of most keyboards.
In Windows the numbers start with 0 (zero) and the most common
ones begin at 0192 and go higher.
If you see an email that has these characters in the subject line,
you will know immediately that it is a spam email. Other obvious
spam emails include the names of medications or offer financial
services of one sort or another.
When you spot an obvious spam email, highlight the email above
it in your Inbox list. Then press the down arrow key and
IMMEDIATELY press Delete. The email will be transferred to the
Trash folder. If you see several spam emails in successive
lines in your Inbox, select the non-spam email above the
spams, press the down key and IMMEDIATELY press the Shift key.
This will enable two or more emails to be selected. If two or
more emails are selected, none of them will be opened. With Netscape
Messenger it is impossible to select a single email by highlighting
it in the list without opening it. It always takes a fraction
of a second for an email to open so it is possible to select one
and IMMEDIATELY press Delete so that it doesn't open before it
is transferred to the Trash folder. The same applies when you
select two emails by using the down arrow key and the shift key.
If you select the second email fast enough, the first one will
not be opened.
When you have selected two or more emails this way, they can all
be transferred to the Trash folder together by pressing the Delete
key. Now, when you have transferred some presumed spam emails
to the Trash folder you can go on to the next and most useful
stage.
Looking at
Spam Safely
In Windows you can use the program Wordpad to look at what is
in your Trash folder safely. (You can also use Notepad for a small
collection of spams but Wordpad is better.) Wordpad has the advantage
that it remembers the last four files opened so that it is easy
to look at the Trash folder again later without having to look
for it again. No emails viewed with Wordpad can activate a virus
or a trojan as you look at them. It is the best and safest way
to look at suspicious emails.
When you look at the contents of the Trash folder (strictly speaking it is a file and NOT a folder) you will see a lot more about your emails than you knew existed. You will see a lot of information about the emails that can tell you who sent it and if the person used some form of re-direction to make it seem that the email came from a trusted source like a university. Study what you see very carefully to see how many spammers try to avoid "easy" filters. For example, the word Viagra could appear as Vi<i>agra. The <i> meta tag means switch the typeface to ITALIC but prevents a filter for Viagra from working because it no longer exists as an identifiable sequence of characters.
What to Search
For
After you have studied the contents of the Trash file with Wordpad
for a while you will see that a large number of spam emails include
a web address that starts <a href=" or something similar.
You know that very few of your usual email correspondents will
include a web address in an email so <a href=" could be
used as a filter for that sort of spam. Nevertheless, you do not
want to class every email that includes <a href=" as spam
so you will have to look for something more like <a href="http://web.artprice.com
to be sure that you have something that can be used as a unique
spam filter.
Other things to look for that hardly ever appear in ordinary emails
are images. These will always be GIF or JPEG files. The start
of a typical image would be something like this:
PGZvbnQgc2l6ZT0iMSI+DQphcmdpbmluZTMm
Such files will often include strings of letters that will never
normally occur in ordinary text in any language. Some are obvious
like AAAAAAA in the middle of an image file. Others are less obvious
but pairs like DQ and PG often occur. The letter combinations
that you will see in the spam that you get may be different but
you will soon begin to recongnise the common ones. Other tricks
include breaking up words in an email with pseudo meta tags. As
these meta tags have no function, they are ignored when the email
is opened normally and broken up words become whole. These pseudo
meta tags usually start with <!-- This combination of characters
is enough for a filter. Another disguise used is to convert ordinary
letters into their hexadecimal equivalents and to use e.g. <=41>
for the letter A or <=65> for the letter e. If you usually
use English, you will not use characters like Å (C5) or
ß (DF). These are sometimes used in place of the normal
letters that they resemble. If you use Wordpad to look at the
Trash file, you will see that many spammers tricks are repeated
if you get a lot of spam. The way to check for repeats is to mark
a suspect sequence of characters, pres Ctrl and C together and
then press Ctrl and H together. This starts the Wordpad Search
and replace function. When this is done for the first time in
a session, the copied characters will be what is searched for.
If the sequence is found a lot, it is a very good candidate for
a filter.
Filtering Spam
Now you have found something that identifies a spam email you
can start to organise filters. In Netscape Messenger select Edit
in Netscape 4.7 or Tools in Netcape 7.0 and then Message Filters.
When you see the Message filter Dialog box, click on New. You
will then be able to give a name to the filter and decide what
the filter should do. For unwelcome emails the filter should move
the emails to Spam or Trash. For welcome emails
the filter should move the emails to Friends or whatever
name you have given for your wanted emails from a known group.
(You will have to create any new folders/files that you will need
for filtering.) You can use several groups of characters to search
for in an AND or OR combination in the Subject line, the Sender
or the Body of the email as you choose.
I always include in the title of the filter an indication of the
action that it should take. Some examples are:
Medication - Trash, Loan - Spam, Mary Jones - Friends, Viagra
- Delete etc.
I suggest that when you start using filters that you arrange
that unwanted emails are directed to the Spam folder/file.
Then you can have a look at the contents of the Spam file
with Wordpad to double check that the filter is working exactly
as you want it to. Then, when you are sure that no wanted emails
are sent to the Spam file, you can select them all by pressing
Shift and Down Arrow followed by Delete. They will then be transferred
to the Trash file. There is an item called Empty Trash
in the File menu in all versions of Netscape. This will clear
everything in the Trash file so that it can never be recovered
so you must be sure that you are definitely only deleting spam.
When you are really happy that your filters to Spam are
working in the way that you want, edit the filters and change
Spam to Trash. If you find that some forms of offensive
emails occur frequently in the trash folder, you can go to the
next stage and change the filter from "Send to Trash"
to Delete. Do not use the Delete option until you are very sure
that your filters do not put wanted emails into the Trash file.
Priorities
The filtering system in Netscape Messenger allows you to select
the priority of the filters. It is best to arrange that wanted
emails are selected at the top of the list so that you still get
them directed to the (say) Friends folder even if they
may contain character sequences that match some spam you have
found.
Progressively Get Rid Of More Spam
When you have started to use filters you will see that some spam
still finds its way into your Inbox. The rule to follow
is to make sure that your Trash has been emptied first. Then delete
the suspected spam email in the way that I have said earlier.
Next use Wordpad to have a look at the suspected spam email in
the Trash file. You will soon see if it is spam or not,
and if it is, what new filter you could use to get rid of it.
Please remember to scroll down the filter list to a point below
where your wanted emails are filtered to insert the new spam filter.
You can change the priority of a filter with up and down arrows
in the Message Filters dialog box if you want to change it.
No Spam in You Inbox?
If you follow this advice for a time you will find that progressively
less spam finds its way into your Inbox and more and more
goes into Trash.
Then, one day you will select "Get messages" and find
that there is no spam in your Inbox. :-)
It could pay to have a look in Trash
with Wordpad to see what rubbish you have collected. You might
have a friend who has sent you an email that got trapped in the
Trash.
Then, when you are sure that there are no wanted emails in the
Trash,
you can empty it so that it is ready for the next lot of spam.
Improve On This
This is the second
draft of advice on how to deal with spam without using anti-spam
software. If, after you have read this, you can offer advice on
how to do the same with Outlook Express or another Mail program,
please let me know so that I can make this advice more universal.
Please contact me at:
wilf dot james at ntlworld dot com
I think that the only way to defeat spam is to make it unprofitable.
Most spammers work on the basis that if one in 10,000 spams gets
a favourable reply, a profit can be made. I would like the ISPs
to charge for bulk emailing on a progressively more expensive
basis.
The average person
sends only a few emails on any one day so the following suggestions
will have no effect on a private person's ability to communicate
with emails.
As a suggestion: if the first (say) 100 emails sent on any day
were free, the next 100 would be charged at 0.1 cent or penny
each, the next 100 at 1 cent each, the next 100 at 10 cents each
and so on. Companies and organisations that have legitimate opt-in
mailing lists should pay (say) GBP100.00 to register a list annually
and be able to send up to 10,000 emails a day at no extra charge.
Any company or organisation that continues to send emails to someone
who has opted out should lose the right to opt-in mailing list
privileges.
Any ISP that does not charge private individuals according the the agreed scale may be charged by receiving ISPs at 10 times the scale rate. If the sending ISP does not pay, all emails from that ISP will be blocked permanently by the receiving ISPs.
Any individual found to be selling email addresses should be fined GBP 100.00 for the first offence and progressively 10 times more for subsequent offences. After a third offence, he or she should be banned from using the internet for a year. If a person uses the internet while banned, the sentence will automatically become a jail sentence for a year. A company or organisation that sends spam without being an opt-in registered organisation will be fined one third of its asset valuation. Its owners and directors should also be fined one third of their annual incomes.
Any emailer who uses or attempts to use a disguised address should have all his or her emails blocked permanently.
I get nearly 100 spam emails a day now. The present EU legislation is useless. Something needs to be done to safeguard what is a precious resource.
If you can improve on these suggestions, please let me know.
Thank you for visiting Wilf's Advice Pages.