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Re: yahoo to use public key technology for anti-spam

daemon@ATHENA.MIT.EDU (Anton Stiglic)
Sun Dec 7 14:38:06 2003

X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
From: "Anton Stiglic" <astiglic@okiok.com>
To: "Carl Ellison" <cme@acm.org>,
	"'Will Rodger'" <wrodger@pobox.com>,
	"'Steve Bellovin'" <smb@research.att.com>,
	<cryptography@metzdowd.com>
Date: Sun, 7 Dec 2003 14:11:14 -0800


----- Original Message ----- 
From: "Carl Ellison" <cme@acm.org>
To: "'Will Rodger'" <wrodger@pobox.com>; "'Steve Bellovin'"
<smb@research.att.com>; <cryptography@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@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.

--Anton



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