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Date:      Tue, 28 Sep 1999 23:48:07 +0000 (GMT)
From:      Terry Lambert <tlambert@primenet.com>
To:        jack@germanium.xtalwind.net (jack)
Cc:        gjp@in-addr.com, n@nectar.com, freebsd@gndrsh.dnsmgr.net, chat@FreeBSD.ORG
Subject:   Re: Filtering port 25 (was Re: On hub.freebsd.org refusing to talk
Message-ID:  <199909282348.QAA14375@usr07.primenet.com>
In-Reply-To: <Pine.BSF.4.10.9909251912510.17474-100000@germanium.xtalwind.net> from "jack" at Sep 25, 99 07:16:58 pm

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> Today Gary Palmer wrote:
> > It doesn't, but direct-inject and relay-rape spam is a major problem.
> > How do you propose that large ISPs combat abuse of their dialups to
> > create this problem?  Forcing the spam to go through their own SMTP
> > servers, where it can be logged, tracked, rate limited and noticed
> > much earlier is a BIG step in the right direction.  UU Net is doing
> > this for all of their resold dialups because of the major problems
> > they had.
> 
> This is the second time I've heard that UUnet is blocking port 25
> from their dialups.  The number of connections from *.da.uu.net
> that I continue to reject make me think it is an urban legand. :(

The theory is that that have "opted" to list their dialup lines with
the DUL's DNS server, which can tell if an IP address is assigned to
a dynamic IP address pool.

The fact is that the majority of dialup address blocks listed in the
DUL are involuntary placement there by third parties.

If they (or another dialup IP POP provider) _had_ intentionally
opted in (I kind of doubt that EarthLink, for example, intentially
severed the ability of their customers to send email to AOL on a
voluntary basis, what without a relay infrastructure in place at
the time), then they are "filtering port 25 at destinations which
have opted to check the DUL before accepting the SMTP connection".

A tangent:

Kind of like all California drivers "opted in" to surrendering their
thumbprint to the state, with the possibility that fingerprint
whorls, as biometric data, could demonstrate, with the furtherance
of the human genome project, that you perhaps have some genetic
predisposition for certain diseases.

The same way a picture of someone showing a detached left earlobe
has been linked to an expression of genes known to  be implicated
in both Cardio Myopathy and Coronary Artery disease.

Given a state-run healthcare system, like medicare, or worse, a
private health insurance agency getting acess to biometric data
that indicates that you are a high risk is my idea of a nightmare:

"Sorry Bob; I see here that you have an abnormality in the Histamine
 complex on your chromosone 6 which makes you ineligible for this
 treatment, since statistically you are 99.95% likely to die from
 an allergic reaction to dust mites before lack of this treatment
 would kill you".


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.


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