Insofar as there is the possibility to enter personal or business data (email addresses, names, addresses), the disclosure of this data by the user is on a voluntary basis. The use and payment of all services offered – if technically possible and reasonable – is permitted without disclosing such data or by providing anonymous data or a pseudonym.

The use of published information such as postal addresses, telephone and fax numbers and e-mail addresses is not permitted for third parties to send unsolicited information. Legal action against senders of spam mails in violation of this prohibition are expressly reserved.