These are the email address as a mandatory field and master data as voluntary information.<br> This data is passed on to technical service providers for the transmission of the newsletter. In addition to your email address, this data may also include other master data.<br> The emails contain web beacons which our email service providers use in order to establish whether the email has been opened. This links the data from the newsletter registration, your IP address and your browser ID, however previously pseudonymized.