Re: [exim] Using TLS to encrypt SMTP traffic...

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Συντάκτης: Tony Finch
Ημερομηνία:  
Προς: W B Hacker
Υ/ο: exim users
Αντικείμενο: Re: [exim] Using TLS to encrypt SMTP traffic...
On Fri, 21 Jul 2006, W B Hacker wrote:
>
> http://www.ietf.org/rfc/rfc4409.txt
>
> - Section 3 mentions other security methods, including IPSEC and SSL
> tunneling.


It does not mention SSL anywhere. It does mention tunnelling, but such
tunnelling would not be visible at the level Exim is operating - think
of port forwarding with ssh or stunnel. Tunnelling protocols have their
own port allocations or protocol numbers, so it would be weird to run them
over port 587.

TLS-on-connect on port 587 is NOT supported by IETF specifications.

Tony.
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