ietf-asrg
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Re: [Asrg] filtering at connect time

2003-03-05 10:10:54


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POP-before-smtp solves this quite well, stands up to analysis.

if not, use AT&T or whatever it's called. They have POPs in every country, and
support pages in every language. This is not a particularly
compelling argument.

Not everyone has such a choice of internet providers. There are
still some places in the world with telco monopolies, and even
here in the US there are rural areas without many choices. And
why should I be required to use XYZ provider so I can get access
in one other country for a short vacation every year?

I know people who use those $9-a-month internet services quite
happily, but who might occasionally travel to places where they
are not available. Why should they pay twice as much for the
privilege of using a mail relay a few times a year?

Source IP is still on there even with the most sloppy remailers these days.

Not all applications require cryptographic levels of anonymity.
Maybe I just don't want to make it obvious to Customer X that
I am on good enough terms with Customer Y to use the latter's
SMTP server. (Perhaps Customer Y won't let me, anyway.)

Not compelling at all. If the relay is at all responsible, the source IP is
on there just the same. If the sender is a member of a large ISP (e.g.  even a
cable modem user) then the message is pooled with millions... no anonymity
benefit whatever.

There is a difference between the mail header saying the message
came from CustomerX.com and the mail header saying the message
came from IP address 192.168.1.1, especially if the IP address is
from a pool of dynamically assigned addresses. The level of
privacy required for some purposes is different from that required
for other purposes.

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