If the Internet is the possibility to enter personal or business data (email addresses, names, addresses) is given, the input of these data takes place voluntarily. The use and payment of all services offered - if technically possible and reasonable - without specification of any personal data or under specification of anonymized data or an alias. The use of the imprint or comparable data of published postal addresses, telephone or fax numbers and email addresses for sending unsolicited information is prohibited. Legal action against senders of spam mails in violation of this prohibition are expressly reserved.