Kens Spam Filter 1.10

A

Anonymous

http://www.gb7abc.net/ksf00.html

Recently like many of us, I have been getting a huge amount of spam (junk emails) I have tried several of the anti spam programs that are around, but none of them really suited me.

Some cost money, and that really did not suite me, others needed far too much user intervention, and none of the ones I tried were 100 percent effective, leaving me to spend at least 15 minutes a day deleting the spam messages that got through.

What I really wanted was an anti spam program that was 100 percent effective, that ran in the background, and needed no intervention from me, such as the daily manual selection and deletion of spam messages that get through, and of course one that did not need an annual fee to keep it running.

I could not find such a program, so the only solution left was to write one, and here it is.

It is not an easy program to install, mainly because I have not got around to automating the install process, so if you want an easy ride this software is not for you, but if you are prepared for a little work, and follow the step by step instructions in the help files you will end up with no spam at all, and whats more you wont have a thing to do, just let the software get on with its job.

How does it work?

Kens Spam Filter sits in between your normal mail program and the outside world, everything you send passes out through the filter, and everything you receive also passes through it.

It has two lists, a list of email addresses from whom it will accept mail, and a list of email addresses that it will reject mail from.

When a message arrives from an unknown user the message is held and a reply generated and sent back to the sender asking them to reply back with a subject line that contains a keyword, this keyword is the letters KSF followed by a short serial number.

If they reply back, all future messages from that person will pass through the filter, and all presently held messages from that email address will be released.

If they dont reply any future messages from them will be ignored, most spammers dont even use real addresses, so they wont ever see the registration request.

On the sending side things work in a similar way, anyone you write to is automatically added to the friends list, so when they reply to you they will not be asked to register as they have already been registered by the simple act of you writing to them.

You can of course manage the allow and blocked mail lists manually, but why bother, unless of course a spammer manages to send you a password, if that happens simply add them to the blocked list and forget about them.


-=-
 
M

Malcolm Reeves

It has two lists, a list of email addresses from whom it will accept mail, and a list of email addresses that it will reject mail from.

When a message arrives from an unknown user the message is held and a reply generated and sent back to the sender asking them to reply back with a subject line that contains a keyword, this keyword is the letters KSF followed by a short serial number.

If they reply back, all future messages from that person will pass through the filter, and all presently held messages from that email address will be released.
You can of course manage the allow and blocked mail lists manually, but why bother, unless of course a spammer manages to send you a password, if that happens simply add them to the blocked list and forget about them.

I have a similar scheme but installed as a script on my domain host.
You can find these on my freeware page with more details. I never
bothered to automate adding a user since 1. I don't get them many to
add and 2. I want control and not find some spammer and filled the
list with crap.

What I found though is I need 4 lists. "Good to", basically email
addresses I can give out but later can throw away if I want to.
"Mailing list to", most mailing list have themselves as the to line
and all the rest as bcc. This filters out those. "Good from" friends
clients etc. "Blackholes", email addresses I give to spammers or
where spammers have typo'ed my email address. These go straight to
the bit bucket.

The "good to" and "good from" get an autoreply when I am on hols. The
rest don't (especially mailing lists :)). Unknowns get a reply say
send email to x to get on the whitelist. So in essence the same as
your KFSxxx in subject except since I have unlimited email addresses I
use those instead.


--

....malcolm

Malcolm Reeves BSc CEng MIEE MIRSE, Full Circuit Ltd, Chippenham, UK
([email protected], (e-mail address removed) or (e-mail address removed)).
Design Service for Analogue/Digital H/W & S/W Railway Signalling and Power
electronics. More details plus freeware, Win95/98 DUN and Pspice tips, see:

http://www.fullcircuit.com or http://www.fullcircuit.co.uk

NEW - Desktop ToDo/Reminder program (free)
 
M

Martyn

Hi,
Presenting another free tool for fighting spam is always adored here. Thus I
congradulate you. But don't you think that the major drawback of popular
spam software (as well as yours I'm afraid) is the reality that the spam is
automated now and we keep getting "different" email addresses from the same
sources every day?.
What happens is that the "enemy" lists of our spam software keeps getting
fatter but the spam continues...

Anonymous said:
http://www.gb7abc.net/ksf00.html

Recently like many of us, I have been getting a huge amount of spam (junk
emails) I have tried several of the anti spam programs that are around, but
none of them really suited me.
Some cost money, and that really did not suite me, others needed far too
much user intervention, and none of the ones I tried were 100 percent
effective, leaving me to spend at least 15 minutes a day deleting the spam
messages that got through.
What I really wanted was an anti spam program that was 100 percent
effective, that ran in the background, and needed no intervention from me,
such as the daily manual selection and deletion of spam messages that get
through, and of course one that did not need an annual fee to keep it
running.
I could not find such a program, so the only solution left was to write one, and here it is.

It is not an easy program to install, mainly because I have not got around
to automating the install process, so if you want an easy ride this software
is not for you, but if you are prepared for a little work, and follow the
step by step instructions in the help files you will end up with no spam at
all, and whats more you wont have a thing to do, just let the software get
on with its job.
How does it work?

Kens Spam Filter sits in between your normal mail program and the outside
world, everything you send passes out through the filter, and everything you
receive also passes through it.
It has two lists, a list of email addresses from whom it will accept mail,
and a list of email addresses that it will reject mail from.
When a message arrives from an unknown user the message is held and a
reply generated and sent back to the sender asking them to reply back with a
subject line that contains a keyword, this keyword is the letters KSF
followed by a short serial number.
If they reply back, all future messages from that person will pass through
the filter, and all presently held messages from that email address will be
released.
If they dont reply any future messages from them will be ignored, most
spammers dont even use real addresses, so they wont ever see the
registration request.
On the sending side things work in a similar way, anyone you write to is
automatically added to the friends list, so when they reply to you they will
not be asked to register as they have already been registered by the simple
act of you writing to them.
You can of course manage the allow and blocked mail lists manually, but
why bother, unless of course a spammer manages to send you a password, if
that happens simply add them to the blocked list and forget about them.
 
A

Aaron

Hi,

Presenting another free tool for fighting spam is always adored here.
Thus I congradulate you. But don't you think that the major drawback
of popular spam software (as well as yours I'm afraid) is the reality
that the spam is automated now and we keep getting "different" email
addresses from the same sources every day?.

You seem to have missed that it works using a challenge response scheme.
Basically, anyone not on your friends list will have their email
rejected and a auto reply with instructions to reply again with a
password phrase. The idea is that spammers won't borther to do that.

See below
address will be released.

The problem is most spammers have forged their headers, so the autoreply
is as good as a bounce to an invalid address or worse a totally innocent
guy who the spammers have targetted.
registration request.

Except when they do, it's an innocent guy's email address :)




Aaron (my email is not munged!)
 
G

Guy Van Rinsveld

I'm using Hotmail via Outlook Express.
Is it working that way ?
I have installed KSF, but I'm getting an error launching Outlook Express.
I have entered this question in Yahoo
http://groups.yahoo.com/group/KensSpamFilter/messages/1

Anonymous said:
http://www.gb7abc.net/ksf00.html

Recently like many of us, I have been getting a huge amount of spam (junk
emails) I have tried several of the anti spam programs that are around, but
none of them really suited me.
Some cost money, and that really did not suite me, others needed far too
much user intervention, and none of the ones I tried were 100 percent
effective, leaving me to spend at least 15 minutes a day deleting the spam
messages that got through.
What I really wanted was an anti spam program that was 100 percent
effective, that ran in the background, and needed no intervention from me,
such as the daily manual selection and deletion of spam messages that get
through, and of course one that did not need an annual fee to keep it
running.
I could not find such a program, so the only solution left was to write one, and here it is.

It is not an easy program to install, mainly because I have not got around
to automating the install process, so if you want an easy ride this software
is not for you, but if you are prepared for a little work, and follow the
step by step instructions in the help files you will end up with no spam at
all, and whats more you wont have a thing to do, just let the software get
on with its job.
How does it work?

Kens Spam Filter sits in between your normal mail program and the outside
world, everything you send passes out through the filter, and everything you
receive also passes through it.
It has two lists, a list of email addresses from whom it will accept mail,
and a list of email addresses that it will reject mail from.
When a message arrives from an unknown user the message is held and a
reply generated and sent back to the sender asking them to reply back with a
subject line that contains a keyword, this keyword is the letters KSF
followed by a short serial number.
If they reply back, all future messages from that person will pass through
the filter, and all presently held messages from that email address will be
released.
If they dont reply any future messages from them will be ignored, most
spammers dont even use real addresses, so they wont ever see the
registration request.
On the sending side things work in a similar way, anyone you write to is
automatically added to the friends list, so when they reply to you they will
not be asked to register as they have already been registered by the simple
act of you writing to them.
You can of course manage the allow and blocked mail lists manually, but
why bother, unless of course a spammer manages to send you a password, if
that happens simply add them to the blocked list and forget about them.
 

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