If personal data (for example name, address or e-mail addresses) is collected on our site, this will always be on a voluntary basis as far as possible. The offers and services on this site shall, as far as possible, be available for use without the need to disclose personal data.

The use by third parties of contact data that has been provided in order to comply with the legal obligation to provide such information for the purpose of sending unsolicited advertising or information material is hereby expressly prohibited. The operators of the site expressly reserve the right to take legal action in the event of the distribution of unsolicited advertising information, such as in the form of spam e-mail.

Source: Disclaimer by Sören Siebert - Attorney-at-Law for Internet law