Re: Who maintains this list server?

> Received: from www1.ietf.org (ietf.org [132.151.1.19])
> 	by calcite.rhyolite.com (8.12.7.Beta0/8.12.7.Beta0) with ESMTP id h098WiDd020984
> 	for <[email protected]> env-from <[email protected]>;
> 	Thu, 9 Jan 2003 01:32:46 -0700 (MST)
> Received: from www1.ietf.org (localhost.localdomain [127.0.0.1])
> 	by www1.ietf.org (8.11.6/8.11.6) with ESMTP id h098GJJ03491;
> 	Thu, 9 Jan 2003 03:16:19 -0500
> ...

> From: Phil Karn <[email protected]>
> To: [email protected]

> Who maintains ietf-mx.ietf.org, 132.151.6.1? This machine handles the 
> [email protected] mailing list, which has been getting spammed regularly. 
> When I forward the spam to spamcop, their scripts erroneously conclude 
> that the spam originated with ietf-mx.ietf.org. That's because this 
> machine is putting on an incorrect Received header with its own IP 
> address instead of the sender's actual IP address.

The PILC list forwarder could be improved but that last is because
SpamCop is hopelessly broken by design, and not only in the complete
craziness of trusting any Received headers except those added by
your own computers.  The only Received header that any sane person
should trust in my copy of your message is first one added by
calcite.rhyolite.com.  As the SpamCop people know perfectly well,
all Received headers except the last ones could ahve been forged
by the previous hop.  ("Ones" plural in case you have control over
more than one of the last SMTP servers.)

For another example of the brokeness by design of SpamCop, the reason
I am not still getting demands from saruman.julianhaight.com that I
shut down spammers sending from rhyolite.com is because the SpamCop
people have finally managed to add entries to their exception database
to ignore the headers added locally by SpamAssasin when that spam
filter gets a hit from the DCC.  SpamCop is willing to send complaints
to any domain found in any URL in spam except those in some list at
SpamCop-Central.


Vernon Schryver    [email protected]
_______________________________________________
pilc mailing list
[email protected]
https://www1.ietf.org/mailman/listinfo/pilc
http://www.ietf.org/html.charters/pilc-charter.html
http://pilc.grc.nasa.gov/