Black Lists are an appropriate punishment for certain offenders.
I have located about 6 primary sources (major outlets) of SPAM that were
producing about 200 SPAM messages per day on my net. Many were porn.
Of these, many of the "opt-outs" only gets you in deeper.
Finally, after getting zone info (which produced over 300 targets), I
managed to block them from sending.
Example: list965sol.com
Look at their DNS server listings and start scanning it's
records. If you go deep enough, you will find an array of mail servers,
all with the same naming conventions. After blocking this array, I saw
about a 90% reduction in SPAM (for about 2 weeks).
If we had a BL that identified this type of offender, it would make my
life a whole lot easier!
You want price - They keep sending us this crap (all HTML), but my
network does not reply. It is simply dropped into the bucket.
If the SPAM hits my mail filters, my net sends me a copy; which I send
back (threefold on serious offenders) to their IT department along with
a request to be taken off their lists.
That usually works!
If anyone is interested in the ranges I am referring to, contact me
directly. Most of them have zone data wide open.
As to "innocents", if a network environment is allowing open relay,
nobody on that network is innocent - my opinion.
SPAM is one of the 5 (probably #2) largest drains on internet bandwidth
- only beaten by rampant virus hopping - again my opinion.
Sorry for the soapbox message.
Regards,
Danny
-----Original Message-----
From: Eric S. Johansson [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 10, 2002 11:28 AM
To: [EMAIL PROTECTED]
Subject: Re: [gb-users] BL question
Mike Burden wrote:
>>-----Original Message-----
>>From: Joe Matuscak [mailto:[EMAIL PROTECTED]]
>>Sent: Tuesday, December 10, 2002 12:10 PM
>>
>>Heh.
>>
>>Repeat after me:
>>
>>"Please GTA, give us more DNSBL lists in the email proxy!!"
>>
>>Im using the cn-kr list, and if I could, Id use the one for
>>Brazil too.
>
>
>
>
> There's a link on http://www.blackholes.us to the page
> http://spfilter.openrbl.org, which appears to be for an
> Open Source app that will pull and consolidate zones from
> multiple RBLs. If you've got a junk PC sitting around,
> maybe this would be a good use for it. If you receive
> large volumes of email, it may also speed up your mail
> processing, since the RBLs are downloaded and served
> locally.
blacklists are fundamentally wrong. They break end to end connectivity
of
the net and nab a fair number of innocent users (i.e. telecommuters,
small-scale mail systems etc.) in addition to catching the occasional
spammer.
I advocate instead a movement towards sender pays e-mail. In other
words,
and e-mail originator would be required to burn CPU cycles in a proof of
work puzzle or actual cash attached to the mail message. On receipt of
said
payment, the originator would be white listed so they wouldn't have to
provide postage for future communications.
one such implementation is underway with the camram project. If you'd
like
to help put a serious dent in Spam without putting a serious dent in
your
computing budget, let me know.
---eric
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
To subscribe to the digest version first unsubscribe, then
e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Archive of the last 1000 messages:
http://www.mail-archive.com/[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
To subscribe to the digest version first unsubscribe, then
e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Archive of the last 1000 messages:
http://www.mail-archive.com/[email protected]
