On Sun, 23 Feb 2014, Viktor Dukhovni wrote:
I hope there aren't any TLS capable mailservers, which fallback to
unencrypted transmission, when I use this.
Fallback is up the client. I am not aware of any Internet facing
MX hosts that offer STARTTLS without any server certificate. Lots
of SMTP clients (not Postfix) don't support anonymous cipher-suites,
and such servers would have a lot of trouble receiving email.
Sorry for unclear text. I meant not the host itself to fallback, but the
client connecting to that host (like you describe).
Ciao
--
http://www.dstoecker.eu/ (PGP key available)
