From: Wietse Venema on
Vegard Svanberg:
> Hi list,
>
> I'm receiving several thousand errors per day from Postfix. The error is
> "454 4.7.0 TLS not available due to local problem" (see below).

Look in your LOGFILE.

Postfix does not reveal the details of this problem to the SMTP client.

http://www.postfix.org/DEBUG_README.html#logging

Wietse