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-   -   On Topic: Fighting SPAM, here and in email (https://www.boatbanter.com/general/2137-topic-fighting-spam-here-email.html)

Harry Krause November 23rd 03 02:49 PM

On Topic: Fighting SPAM, here and in email
 
There seems to be some interest here in dealing with usenet and email
SPAMmers.

For email, I block "incomings" that have the usual offending subject
matters in their headers ('Inet user' is a good one to block at the
moment), and I also block a number of ISPs, including all mail from:

juno.com
netmail.com
puremail.com
freemail.com
bigfoot.com
toursydney.com.au

These ISPs got on my blocked list because of the frequency of SPAM
coming from their direction.


I also block individual emailer spammers, such as:



If I get more than a half-dozen SPAMs from rocketmail.net, it, too, will
go on the blocked ISP list.

If you've got one of the newer cell phones that allow web browsing and
usenet posting, you have to be sure to munge your email address, else
your cell phone email account will be deluged with SPAM. I have one of
those phones, but I don't use the internet features at all. But I've
read a lot about users whose phone email accounts get more SPAM than
their home/office email accounts.

There's a move afoot to publish a directory of cell phone numbers.
Hopefully, we'll be able to keep whatever cell phone numbers we want
away from such a directory and from directory service.

*This* aspect of technological wizardry is not an advance.




--
Email sent to
is never read.

Gene Kearns November 23rd 03 03:41 PM

On Topic: Fighting SPAM, here and in email
 
On Sun, 23 Nov 2003 09:49:56 -0500, Harry Krause
wrote:

There seems to be some interest here in dealing with usenet and email
SPAMmers.

For email, I block "incomings" that have the usual offending subject
matters in their headers ('Inet user' is a good one to block at the
moment), and I also block a number of ISPs, including all mail from:

juno.com
netmail.com
puremail.com
freemail.com
bigfoot.com
toursydney.com.au

These ISPs got on my blocked list because of the frequency of SPAM
coming from their direction.


I also block individual emailer spammers, such as:



If I get more than a half-dozen SPAMs from rocketmail.net, it, too, will
go on the blocked ISP list.

If you've got one of the newer cell phones that allow web browsing and
usenet posting, you have to be sure to munge your email address, else
your cell phone email account will be deluged with SPAM. I have one of
those phones, but I don't use the internet features at all. But I've
read a lot about users whose phone email accounts get more SPAM than
their home/office email accounts.

There's a move afoot to publish a directory of cell phone numbers.
Hopefully, we'll be able to keep whatever cell phone numbers we want
away from such a directory and from directory service.

*This* aspect of technological wizardry is not an advance.


If they ever publish a cell phone directory and charges continue to be
accrued by the receiving party, I predict a return to the concept and
use of debtor's prison.

JR North November 23rd 03 07:42 PM

On Topic: Fighting SPAM, here and in email
 
It's also necessary to have good spam and virus filtering at
the ISP and 3rd party email account level. My Bigfoot
account, after going through Bigfoot's filtering, goes
through my local ISP filtering. The result is, although I
post to usenet with a valid Email address, I receive less
than 5 spams per day. I filter out all the Korean junk and
the usual offensive headers and ISP sources. Small, local
ISPs usually have better filtering than the big box
accounts, who just may be *adding* spam to your account.
If your ISP is forwarding alot of spam to you, you're not
being served well....
My local ISP (Seanet) has up-to-the-minute virus filtering,
and will forward all infected Emails with the virus or worm
stripped, flagged and identified.
MY .02

JR

Harry Krause wrote:

There seems to be some interest here in dealing with usenet and email
SPAMmers.

For email, I block "incomings" that have the usual offending subject
matters in their headers ('Inet user' is a good one to block at the
moment), and I also block a number of ISPs, including all mail from:

juno.com
netmail.com
puremail.com
freemail.com
bigfoot.com
toursydney.com.au

These ISPs got on my blocked list because of the frequency of SPAM
coming from their direction.

I also block individual emailer spammers, such as:



If I get more than a half-dozen SPAMs from rocketmail.net, it, too, will
go on the blocked ISP list.

If you've got one of the newer cell phones that allow web browsing and
usenet posting, you have to be sure to munge your email address, else
your cell phone email account will be deluged with SPAM. I have one of
those phones, but I don't use the internet features at all. But I've
read a lot about users whose phone email accounts get more SPAM than
their home/office email accounts.

There's a move afoot to publish a directory of cell phone numbers.
Hopefully, we'll be able to keep whatever cell phone numbers we want
away from such a directory and from directory service.

*This* aspect of technological wizardry is not an advance.

--
Email sent to
is never read.


--


--------------------------------------------------------------
Home Page:
http://www.seanet.com/~jasonrnorth

Charles November 23rd 03 11:30 PM

On Topic: Fighting SPAM, here and in email
 


Harry Krause wrote:

There seems to be some interest here in dealing with usenet and email
SPAMmers.


This from the guy who constantly spams this newsgroup with off topic crap?

Oh, I forgot, you are the face on the hypocrite poster.

-- Charlie


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Ron White November 24th 03 02:38 PM

On Topic: Fighting SPAM, here and in email
 
I recieve way too much spam, more than 100 per day on avg. I have MS IE set
up with message rules to route some of the junk to a junk folder. When I
block this stuff from being downloaded from my ISP server it eventually
piles up and slows my mail account to a crawl. So my question, do the spam
blocker programs make spam mail pile up on the server ?

Ron White
My boatbuilding website is:
www.concentric.net/~knotreel



Peggie Hall November 24th 03 03:28 PM

On Topic: Fighting SPAM, here and in email
 
Ron White wrote:
I recieve way too much spam, more than 100 per day on avg. I have MS IE set
up with message rules to route some of the junk to a junk folder. When I
block this stuff from being downloaded from my ISP server it eventually
piles up and slows my mail account to a crawl. So my question, do the spam
blocker programs make spam mail pile up on the server ?


No. I use a program called Mailwasher (http://www.mailwasher.net)...it
not only deletes spam from the mail server, but it also "bounces" it
back to the sender as undeliverable. I now have it configured to do it
autmatically...I never even see most of it.

All spam blockers need input from you to know what is and isn't spam,
btw...so it'll take a little time and effort on your part to get any of
'em working. And you'll never be able to cut it down to -0- without
blocking all email from every other ISP...'cuz spammers use bogus (and
sometimes real) MSN, AOL, Yahoo, Earthlink return addresses. But a good
one will block all spam from web domains...and allow you to manually
delete the rest without downloading it.

Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/html/get_ri...oat_odors.html


Joe Parsons November 24th 03 03:46 PM

On Topic: Fighting SPAM, here and in email
 
On 24 Nov 2003 14:38:51 GMT, "Ron White" wrote:

I recieve way too much spam, more than 100 per day on avg. I have MS IE set
up with message rules to route some of the junk to a junk folder. When I
block this stuff from being downloaded from my ISP server it eventually
piles up and slows my mail account to a crawl. So my question, do the spam
blocker programs make spam mail pile up on the server ?


This is going to sound like a commercial for one program, but it really isn't!
I'm just a satisfied user of an application from New Zealand, Mailwasher Pro.

First, I have to observe that you are *lucky* to get only 100 spams a day! I
regularly see 10 times that pass across my server.

In my opinion, one of the single biggest problems with spam filters is the issue
of "false positives."

Many ISPs have their own spamfilters in place. I have problems with this
approach because the user has no control over what gets blocked, and on what
criteria. For example, there is a fine e-newsletter about the Sacramento Delta,
"Delta Scuttlebutt." I forwarded a copy of the letter to my wife at work; it
was blocked by her employer's ISP because it contained the word "butt!"

I have long used spam filters on my email client (Eudora), but using that
approach alone, I'd still have to download all the crap before filtering it.

With Mailwasher, which I've been using for several months, I download only
enough headers from the server to determine whether they are spam or legitimate.
Then Mailwasher deletes them from the server.

At present, I am using a combination of my own blacklist, two network blacklists
(SpamCop and ORDB), a proprietary real-time blacklist, a whole arsenal of RegExp
filters and a whitelist of legitimate senders.

I have 100% confidence in several of my filter expressions, so I tell Mailwasher
to delete those spams without any intervention from me. Those that remain take
just a few seconds to skim over before deleting.

There's no "perfect" spam filter, but for my purposes, Mailwasher comes pretty
damn close.

HTH,
Joe Parsons

Ron White November 24th 03 03:56 PM

On Topic: Fighting SPAM, here and in email
 
Thanks, I'll visit that site. I really like the idea of bouncing it back and
possibly causing some annoyance for the spammer.

--
Ron White
My boatbuilding website is:
www.concentric.net/~knotreel



Peggie Hall November 24th 03 04:35 PM

On Topic: Fighting SPAM, here and in email
 
I've used the freeware version of Mailwasher, which I got before the Pro
version was available, and for which I made a $20 "donation," for about
a year. I've also been very pleased with it. It occasionally mistakes a
legitimate email for spam--for instance, I've made *free* a wildcard,
which caused it to bounce an email from a friend whose last name is
Freeman)...but that was easily overcome by adding his email address to
the "friends" list.

I prob'ly have at least 200 wildcard expressions, domain names and
subject line filters in place...and I just keep adding on as necessary.
Since spammers continually change domain names and email addresses, I've
also configured it to delete those that don't show up again within 90
days, which keeps the list down to a manageable size.

However, it seems to me that if I can cut spam by 90% with a freeware
program, ISPs have the technology to do it before it ever gets to our
mail servers. And it shouldn't require any filtering...only bouncing
everything to 10+ addresses from the same sender. Legitimate senders who
want to send new baby announcements etc to half the world would still be
able to do it by just limiting 'em to batches of 9 at a time. Prob'ly
wouldn't be foolproof, but would get rid of 90% of spam...and have the
added benefit of clogging up the spammers' servers with their own junk
coming back to 'em.


Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/html/get_ri...oat_odors.html


Jack Meholf November 24th 03 06:44 PM

On Topic: Fighting SPAM, here and in email
 
Don't bounce the email, very very rarely will the address be legitimate.
All you will be doing is contributing to the number of useless email being
bounced around.


"Ron White" wrote in message
...
Thanks, I'll visit that site. I really like the idea of bouncing it back

and
possibly causing some annoyance for the spammer.

--
Ron White
My boatbuilding website is:
www.concentric.net/~knotreel





Peggie Hall November 24th 03 10:52 PM

On Topic: Fighting SPAM, here and in email
 
Jack Meholf wrote:
Don't bounce the email, very very rarely will the address be legitimate.
All you will be doing is contributing to the number of useless email being
bounced around.


I dunno, Jack... All the spam from spammers' website domains is
bounceable. I sometimes check to see if a domain exists and what it
is...and it's inevitably a "direct marketer's" website. The only ones
that aren't bounceable are from spoofed AOL, Earthlink, MSN, Yahoo etc.
I don't try...I just instruct Mailwasher to delete 'em.

Ironically, at least 90% of the spammers using spoofed email addresses
seem to be using Yahoo addresses. I say ironically because my ISP (SBC,
which is an alliance of most, if not all, of the Bells west of the MS
river) allied with Yahoo about a year ago...my POP server address
changed to sbc.yahoo.com, which means that all email goes through Yahoo
servers. It may be unrealistic to expect Yahoo to be able to block
incoming mail using spoofed AOL, MSN etc addresses...but one would THINK
that Yahoo SHOULD have the technology to recognize and block incoming
email from non-existant Yahoo accounts...especially if it's a zillion
emails from the same sender. How tough can it be to install software
that matches Yahoo return addresses against account lists?

Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/html/get_ri...oat_odors.html


Jack Meholf November 24th 03 11:10 PM

On Topic: Fighting SPAM, here and in email
 
Peggy, it is very common for spammers to used forged email address of
legitimate users. When you bounce the email, you are inadvertently
returning the mail to an innocent person. If enough people bounce the email
you end up mail bombing the wrong person.

Check out grc.spam for more info on the problems with bouncing email. Many
people in this group like Mailwasher, but it universally agreed that
bouncing email rarely if ever gets to the person who is actually sending out
the spam.


"Peggie Hall" wrote in message
...
Jack Meholf wrote:
Don't bounce the email, very very rarely will the address be legitimate.
All you will be doing is contributing to the number of useless email

being
bounced around.


I dunno, Jack... All the spam from spammers' website domains is
bounceable. I sometimes check to see if a domain exists and what it
is...and it's inevitably a "direct marketer's" website. The only ones
that aren't bounceable are from spoofed AOL, Earthlink, MSN, Yahoo etc.
I don't try...I just instruct Mailwasher to delete 'em.

Ironically, at least 90% of the spammers using spoofed email addresses
seem to be using Yahoo addresses. I say ironically because my ISP (SBC,
which is an alliance of most, if not all, of the Bells west of the MS
river) allied with Yahoo about a year ago...my POP server address
changed to sbc.yahoo.com, which means that all email goes through Yahoo
servers. It may be unrealistic to expect Yahoo to be able to block
incoming mail using spoofed AOL, MSN etc addresses...but one would THINK
that Yahoo SHOULD have the technology to recognize and block incoming
email from non-existant Yahoo accounts...especially if it's a zillion
emails from the same sender. How tough can it be to install software
that matches Yahoo return addresses against account lists?

Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/html/get_ri...oat_odors.html




Peggie Hall November 25th 03 12:23 AM

On Topic: Fighting SPAM, here and in email
 
Jack Meholf wrote:
Peggy, it is very common for spammers to used forged email address of
legitimate users.


Jack, apparently you only read the first sentence of my post that you're
responding to. I DON'T bounce email from senders using email addresses
from AOL, MSN, earthlink etc because I know that 99% of 'em ARE spoofed.
But when I see a header offering me Viagra without a prescription,
and the sender's address is something like , I don't have
any doubt that Mailwasher is bouncing it back to the sender, nor any
qualms about instructing Mailwasher to blacklist that domain name, and
bounce and delete all future emails from it. I also have no qualms
whatever about blacklisting and bouncing all email from senders whose
domain names include "bingo" "cash," "casino" "amazing" "bargain"
"fantastic" "fabulous" "hotstuff" "extreme" "investment" "jackpot"
"wealth" "discount" etc.


When you bounce the email, you are inadvertently
returning the mail to an innocent person. If enough people bounce the email
you end up mail bombing the wrong person.


I seriously doubt that any "innocent" person or legitimate business has
a website with any of the above expressions in its domain name.

Check out grc.spam for more info on the problems with bouncing email. Many
people in this group like Mailwasher, but it universally agreed that
bouncing email rarely if ever gets to the person who is actually sending out
the spam.


That only applies to spam from users spoofing legimite email
addresses--using AOL, Yahoo, MSN etc...and as stated twice previously, I
don't bounce those. I even get spam that has my own address as the
return address...but I've never had any bounced back to me from anyone
else who got any using my address, so apparently those spammers have
software that automatically substitutes every recipient's return address
for the real one.

Peggie


"Peggie Hall" wrote in message
...

Jack Meholf wrote:

Don't bounce the email, very very rarely will the address be legitimate.
All you will be doing is contributing to the number of useless email


being

bounced around.


I dunno, Jack... All the spam from spammers' website domains is
bounceable. I sometimes check to see if a domain exists and what it
is...and it's inevitably a "direct marketer's" website. The only ones
that aren't bounceable are from spoofed AOL, Earthlink, MSN, Yahoo etc.
I don't try...I just instruct Mailwasher to delete 'em.

Ironically, at least 90% of the spammers using spoofed email addresses
seem to be using Yahoo addresses. I say ironically because my ISP (SBC,
which is an alliance of most, if not all, of the Bells west of the MS
river) allied with Yahoo about a year ago...my POP server address
changed to sbc.yahoo.com, which means that all email goes through Yahoo
servers. It may be unrealistic to expect Yahoo to be able to block
incoming mail using spoofed AOL, MSN etc addresses...but one would THINK
that Yahoo SHOULD have the technology to recognize and block incoming
email from non-existant Yahoo accounts...especially if it's a zillion
emails from the same sender. How tough can it be to install software
that matches Yahoo return addresses against account lists?

Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/html/get_ri...oat_odors.html






--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://shop.sailboatowners.com/detai...=400&group=327

http://www.seaworthy.com/html/get_ri...oat_odors.html


Joe Parsons November 25th 03 01:11 AM

On Topic: Fighting SPAM, here and in email
 
On Mon, 24 Nov 2003 22:52:18 GMT, Peggie Hall wrote:

Jack Meholf wrote:
Don't bounce the email, very very rarely will the address be legitimate.
All you will be doing is contributing to the number of useless email being
bounced around.


I dunno, Jack... All the spam from spammers' website domains is
bounceable. I sometimes check to see if a domain exists and what it
is...and it's inevitably a "direct marketer's" website. The only ones
that aren't bounceable are from spoofed AOL, Earthlink, MSN, Yahoo etc.
I don't try...I just instruct Mailwasher to delete 'em.


I bought Mailwasher Pro partly because of its ability to bounce spam, presumably
back to the sender's server. It is a controversial subject.

I was bouncing for about 60 days, but stopped; the amount of spam I was getting
did not decrease a bit, so I figured I wasn't doing anyone a favor (especially
myself) any favors by adding to the bandwidth congestion. It also slows down
the program. That load may not be an issue for someone getting, say. 50 or 100
spams a day, but I get around a *thousand* a day. For me, it's an issue.

I'm able to deal with almost all of it (with very few false positives) by using
a combination of three live "blackhole" databases, 3,200 blacklist entries that
expire after 15 days of non-use and a set of filters that I downloaded from the
Wailwasher forum. Most of the filters delete spam immediately without any input
from me.

Some ISPs do provide filters for their users, but the fact is that those kinds
of filters *will* catch legitimate e-mail.

I'm just not willing to consider that as an option.

But anyone who's looking for a spam solution would do well to give Mailwasher a
good look!

Joe Parsons

Ironically, at least 90% of the spammers using spoofed email addresses
seem to be using Yahoo addresses. I say ironically because my ISP (SBC,
which is an alliance of most, if not all, of the Bells west of the MS
river) allied with Yahoo about a year ago...my POP server address
changed to sbc.yahoo.com, which means that all email goes through Yahoo
servers. It may be unrealistic to expect Yahoo to be able to block
incoming mail using spoofed AOL, MSN etc addresses...but one would THINK
that Yahoo SHOULD have the technology to recognize and block incoming
email from non-existant Yahoo accounts...especially if it's a zillion
emails from the same sender. How tough can it be to install software
that matches Yahoo return addresses against account lists?

Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/html/get_ri...oat_odors.html




Floyd in Tampa November 25th 03 02:41 PM

On Topic: Fighting SPAM, here and in email
 
....only bouncing
everything to 10+ addresses from the same sender. Legitimate senders who
want to send new baby announcements etc to half the world would still be
able to do it by just limiting 'em to batches of 9 at a time. Prob'ly
wouldn't be foolproof, but would get rid of 90% of spam...and have the
added benefit of clogging up the spammers' servers with their own junk
coming back to 'em.


Wouldn't the spammers just send in batches of 9?




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