To use encrypted communication, you neet to set it up once. During the setup, we will generate a pair of keys and store a secure backup if desired.
How to set up PGP if you haven't done so before (on any device).
You are using Mozilla Firefox or Google Chrome.
If you have set up a recovery document for your key pair, you can use it to set up Encrypted Communication on other computers.
As soon as you have set up Encrypted Communication on one of your computers, you can also use it with your GMX mail app for Android.
If you have already set up Encrypted Communication on your computer, you can also use it with your GMX Mail App.