Log into your system at my.quentn.com. Under Settings -> System -> Profile, you will find the data that you have stored. Your email's legal notice will be created on this basis. You can find more information here.
Note: Legal notice requires
According to Section 5 of the German Telemedia Act (TMG), it is mandatory for commercial websites and commercial emails to have an email legal notice in the email signature - a link to the legal notice is not sufficient.