[SEDXC] [SECC] Fwd: Comcast Subscriber Problems

Paul Pescitelli dx.k4uj at gmail.com
Wed Sep 13 10:13:12 EDT 2006

Black listing is not a dumb idea, it was one that was founded out of
necessity. Just as there are many ways to ATTEMPT to enforce a speed
limit, there are many ways of combatting spam, RBL is just one of
them, it is however a necessary evil to protect the masses, yes it has
its faults but most everything does.

Identifying servers that are capable of sending spam and thwarting
their access is a viable way to reduce the SPAM.  I work for one of
the top 3 ISP's in the country and do understand this technology,
suffice it to say without RBLS working in conjuction with other
technology email would not be an effective means of communication
becuase of the signal to noise ratio.

NET NET:  Ed, I am glad you got it fixed...
73 - Paul    K4UJ / FS, KP2, KP4, PJ6, PJ7,VP2E, ZF2UJ

On 9/12/06, Bill Coleman <aa4lr at arrl.net> wrote:
> On Sep 12, 2006, at 1:29 AM, Ed wrote:
> > Unsubscribing RTTY and then unsubscribing doesn't work. Oh yes, you
> > get
> > the email saying you are unsubscribed and then subscribed but Comcast
> > is the block.
> >
> > Which is why I may just change DSL service before the week is over.
> >
> > Hopefully, BellSouth will be more reasonable.
> Don't count on it.
> Here's what happens.
> 1) The blacklist folks set up an e-mail address on the internet. They
> call it a SpamTrap or sometimes this technique is called a
> "honeypot". The idea is to set up something attractive to the flies
> (eg spammers)
> 2) They intercept the spam they receive, and then work backwards to
> figure out which parts of the internet it came from. They find the
> addresses of the mail servers that originated spam.
> 3) They create a list these "spam" e-mail address servers, with the
> implication to other ISPs that people can simply reject all main from
> these servers - and voila, no spam.
> However, this scheme doesn't work, everyone knows it doesn't work,
> and yet they continue to perpetrate it.
> The problem appears in step 2. The assumption is made that any ISP
> that is e-mailing spam must be complicit with the spammer. These
> days, most spammers use a "bot" network of compromised computers that
> they control remotely. Someone puts an unprotected computer out
> there, the spammers install their remote control software, and they
> have it send the spam. Most of these computers become "owned" by the
> spammers due to sheer ignorance of the people setting them up.
> It's not surprising that a large ISP like Comcast or BellSouth gets
> blacklisted with great regularity, because it is very easy for
> someone to be careless when setting up a computer. That's why the
> blacklist guys should just clear their lists.
> Blacklisting is a dumb idea. It does nothing to the spammers and only
> hurts legitimate internet users. I hope one day, one of them gets
> sued for unfair restraint of trade for blocking e-mails and loses big
> time. Maybe that will put an end to that nonsense. (Of course, I hope
> the same fate awaits the spammers, too)
> Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
> Quote: "Not within a thousand years will man ever fly!"
>              -- Wilbur Wright, 1901
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