Is it possible to make courier automagically failing back to plain text
for broken smtp hosts that advertise STARTTLS but are broken on STARTTLS
command returning something like: "454 TLS not available: missing RSA
private key (#4.3.0)"?
AFAIK it isn't possible in general. But think about it: why should it? If
you announce being able do TLS and actually you aren't why
should you announce it in the first place?
It's up to the receiving server to get it right.
Either I do "speak" TLS and announce it, or I can't.
In the latter case I can't announce it.
Yes, that'ok. I agree with you!!
There's a workaround, though, but it's ugly:
put something like