trying to get config for tls_ciphers

[Jan Völkers]

I'd like to communicate encrypted, but when i configure tls, qpsmtp 
stops working with the line "trying to get config for tls_ciphers" in 
the last logline.

I have added a file tls_ciphers with "DEFAULT" inside. No change.
I use pem files - could that be the problem? What format is preferred?
Any hints?

Jan