Provided that within the Internet offer exists the possibility of entering personal or business data (email addresses, names, addresses), the revelation of these data occurs on the part of theuser on expressly voluntary base. The claim and payment of all offered services is permitted - so far technically possibly and reasonably - also without information of such data or under information of anonymous data or a pseudonym. The use within the scope of the imprint or comparable information published contact data like postal addresses, phone and fax numbers as well as email addresses by third for the sending of not expressly requested information is not permitted. Juridical steps against the senders from so-called Spam mail by offence against this ban are expressly reserved.