Auteur: Kjetil Torgrim Homme Date: À: exim-users Sujet: Re: [exim] Setup for authenticated submission
On Wed, 2006-01-18 at 18:28 +0100, Jakob Hirsch wrote: > Kjetil Torgrim Homme wrote:
>
> > design of Internet protocols. LDAP, IMAP, SMTP, etc. etc -- it all
> > starts unencrypted and negotiates afterwards.
>
> Err, there's a $1s counterpart for every protocol you listed, and there
> are pop3s, imaps, nntps, https (which has no STARTTLS, TTBOMK).
HTTPS was a Netscape invention, and it filled a great need, so the
method was quickly applied to other protocols. IETF was never satisfied
with using two ports for every protocol, however, so the recommended way
of going encrypted is the relevant protocol's STARTTLS equivalent.
upgrade to TLS in HTTP is RFC 2817, btw.
--
Kjetil T.