When you send the message you give us your name and email address. Without this we cannot answer your question. We store both until your question is answered. Then we delete your name and email address. You can also ask us to delete your data before, but then we cannot answer your question any further. We do not pass on this data. You can see your further rights under the link "
Data protection". There you will also find information about who is responsible and who you can complain to if something is not right. The legal basis for the receipt and storage of your name and email address is Art. 6 para. 1 b DSGVO.