Hello again,

first I must thank all that helped me! There were some mistakes I have made:
I have thought that I have allowed the NO_TLS_AUTH, but was wrong.
I have had the wrong mail-name in my dpkg-reconfigure
and have not commented out the hosts_avoid_tls = localhost section.

Hope I would not be blamed and banished, but still can ask here in the
future. Thank you all and tschüß ;-)

Jens


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Debian GNU/Linux 4.0 stable