yahoo to use public key technology for anti-spam

[bear]

On Sun, 7 Dec 2003, Anton Stiglic wrote:

>
>----- Original Message -----
>From: "Carl Ellison" <cme at acm.org>
>To: "'Will Rodger'" <wrodger at pobox.com>; "'Steve Bellovin'"
><smb at research.att.com>; <cryptography at metzdowd.com>
>Sent: Sunday, December 07, 2003 8:44 AM
>Subject: RE: yahoo to use public key technology for anti-spam
>
>
>> I, for one, hate the idea.  My From address should be cme at acm.org.  That's
>> my remailer where I receive all my incoming e-mail.  However, my outgoing
>> SMTP server depends on which cable modem provider or hot spot I happen to
>be
>> at the moment.  It would be that SMTP machine that signs my outgoing mail,
>> not acm.org who never sees my outgoing mail.
>
>But you should be sending mails via *your* SMTP server, and should be
>connecting to that SMTP server using SSL and authentication.  Open relays
>encourage spam.  People shouldn't be relaying mail via just any SMTP server.

This is generally how I work it.  I sit down at any hotspot and I
get network connectivity.  But all the hotspot is ever going to see
of my browsing, email, and anything else I like to keep private is
SSH packets to my home machine, or encrypted X packets running
between the X server on my laptop and X clients on my home machine.

A bit of lag is acceptable. Sending private mail via untrusted
SMTP servers is not.

				Bear

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