In general, you can use this website without providing any personal data. Insofar as our website collects personal data (e.g. name, address, e-mail addresses), this will happen on a voluntary basis wherever possible. The data will not be passed on to third parties without your explicit agreement.
Please note that transferring data online (e.g. via e-mail) can pose security risks. It is impossible to fully protect your data from third-party access.