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Re: [perpass] draft-josefsson-email-received-privacy

"John R Levine" <johnl@taugh.com> Tue, 27 October 2015 15:16 UTC

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Date: Tue, 27 Oct 2015 11:16:45 -0400
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From: John R Levine <johnl@taugh.com>
To: Ned Freed <ned.freed@mrochek.com>
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References: <871tcl3f03.fsf@latte.josefsson.org> <20151024224621.15562.qmail@ary.lan> <0c5701d10f8f$882e4a10$988ade30$@huitema.net> <87pp02rprp.fsf@latte.josefsson.org> <alpine.OSX.2.11.1510261028510.23347@ary.lan> <87h9ldsl0c.fsf@latte.josefsson.org> <alpine.OSX.2.11.1510261231330.23457@ary.lan> <01PSED6Z1V9S00HE89@mauve.mrochek.com>
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Cc: Simon Josefsson <simon@josefsson.org>, perpass@ietf.org
Subject: Re: [perpass] draft-josefsson-email-received-privacy
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> As I understand it the argument here is that these IP addresses may expose
> internal network topology -

Actually, at this point I don't understand what the IP address is supposed 
to expose beyond the location of a server which generally tells you 
nothing new about the location of the user.  Perhaps Simon can clarify.

> AOL:     webmail discloses originating client IP, can't test submit due to 
> AOL brokenness

I managed to configure Pine to send AOL mail, it logs the IP in both the 
Received: and X-AOL-IP headers.  But it uses TLS both on submit and 
outbound.

>> So I think it is fine to look at the issues and see where we might make
>> improvements, but it is a bad idea to rush to naive changes that don't
>> address real privacy issues but do cause real problems for operations and
>> security.
>
> Agreed again.

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
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