In order to use two-factor authentication to provide additional protection for your
GMX mailbox, a multi-step setup process is required.
An authentication app is required to set up two-factor authentication. It generates a
unique, temporarily valid security code each time you log in. If you do not yet have
an authentication app installed on your smartphone, please visit Selection of apps for
two-factor authentication for an overview of available free and paid apps
plus links to additional information.
Click on Home and then on Security Options.
Under Two-factor authentication, click on
Activate two-factor authentication.
The setup assistant will open. First, carefully read what you will
require for the configuration.
Click on Start setup now.
To begin the configuration of two-factor authentication, enter your password
for your email address and click on Start now.
Verify your mobile phone number. If you are ever unable to access your account,
a verified mobile phone number will be required to reset the password. You have
the following options:
If you have not yet saved a mobile phone number for your account, enter
a new mobile phone number in the corresponding field.
If you have already saved a mobile phone number for your account, it
will be shown. Check if this saved mobile phone number is still up to date.
If the mobile phone number is no longer up to date, click on
Click on Request SMS.
A confirmation code will be sent to you at the specified mobile phone
Enter the confirmation code from the SMS and click on
If you have not received a confirmation code, you can repeat the process
by clicking on Resend SMS. Check if the saved mobile
phone number is still up to date.
You have verified your mobile phone number.
Set up your authentication app. An authentication app will be required to set
up two-factor authentication. It generates a unique, temporarily valid security
code each time you log in. You have the following options:
If you have not yet installed an authentication app on your smartphone,
click on Still don't have an authentication app?
Use a preinstalled authentication app.
Open your authentication app and set it up. You have the following
Scan the QR code using the authentication app.
Under the QR code, click on Copy code and
manually paste the code.