If the opportunity for the input of personal or business data (email
addresses, name, addresses) is given, the input of these data takes
place voluntarily. The use and payment of all offered services are
permitted - if and so far technically possible and reasonable -
without specification of any personal data or under specification of
anonymized data or an alias.

The use of published postal addresses, telephone or fax numbers
and email addresses for marketing purposes is prohibited, offenders
sending unwanted spam messages will be punished.