Do you want to log in to GMX MyAccount to change personal data, security settings or private sphere settings?
How to log in to GMX MyAccount without leaving GMX Mail App for Android
Tap the menu symbol in the menu bar.
The menu navigation is shown.
Below your email folders, tap Settings.
Tap your email address.
The screen "Account Information" opens.
Under "Personal Information", tap GMX My Account
You can now carry out changes to your GMX