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Re: [ietf-smtp] SMTP Over TLS on Port 26 - Implicit TLS Proposal

2019-01-08 19:01:42

So explain what your proposal gives us that DNSSEC+STARTTLS doesn't give
us?


*mail.example.com <http://mail.example.com> connecting to mail.yahoo.com
<http://mail.yahoo.com> with its IP address*
*yahoo.com <http://yahoo.com> => 220 mail.yahoo.com <http://mail.yahoo.com>
Yahoo ESMTP Service Ready*
*example.com <http://example.com> => EHLO mail.example.com
<http://mail.example.com>*
*yahoo.com <http://yahoo.com> => 250-Hello, nice to meet you,
mail.example.com <http://mail.example.com>*
*yahoo.com <http://yahoo.com> => 250-SIZE 1000000*
*yahoo.com <http://yahoo.com> => 250-8BITMIME*
*yahoo.com <http://yahoo.com> => 250 STARTTLS*
*example.com <http://example.com> => STARTTLS*
*yahoo.com <http://yahoo.com> => 220 Go ahead*
*Key exchange happens here and the rest of the email part is encrypted *

Are you saying all of those parts can be encrypted via DNSSEC+STARTTLS?



On Wed, Jan 9, 2019 at 6:25 AM <valdis(_dot_)kletnieks(_at_)vt(_dot_)edu> wrote:

On Wed, 09 Jan 2019 06:13:04 +0530, Viruthagiri Thirumavalavan said:

They are the only users of that domain and they probably need privacy.
i.e.
If someone log the outgoing mails of firstnamelastname.com, then the
privacy is being breached here. So those users don't want any traces.
Implicit TLS offers that.

So explain what your proposal gives us that DNSSEC+STARTTLS doesn't give
us?



-- 
Best Regards,

Viruthagiri Thirumavalavan
Dombox, Inc.
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