Patrick Lambert <[EMAIL PROTECTED]> wrote:
>Each SMTP server could compute a random set of keys when it
>is installed, and a simple new command could be added to retrieve
>the public key. When any connection is made between the servers,
>a public key would be fetched. If the remote server has not been
>upgraded and does not support PKI, then the transmission would
>continue in a normal way. If both servers support it, then
>encryption could be established, automatically, using PKI.
Congratulations, you've just reinvented RFC2487:
http://www.ietf.org/rfc/rfc2487.txt
qmail patch available from:
http://www.esat.kuleuven.ac.be/~vermeule/qmail/tls.patch
-Dave
