Composing and Sending
Receiving and Reading
Organizing and Searching
Spam and Viruses
3rd party devices
3rd Party Applications
On Mobile Devices
Use Cloud in your Browser
Manage Photos in your Cloud
GMX Mail App for iOS
GMX Cloud App for iOS
GMX Mail App for Android
GMX Cloud App for Android
GMX Help Center
Encrypted Communication: Functionality
This section contains more information about the functionality of end-to-end encryption.
Encrypted Communication: Background
Why has my email account been blocked?
My account got hacked, what can I do?
I get an error message in the browser.
Unknown Sessions in my account
What should I do if 2FA is not working?
Why am I unable to log in with MailCheck for Firefox?
How do I set up application-specific passwords?
What is an authentication app and why do I need it?
Where do I download an authentication app?
Why doesn't the confirmation code from my FreeOTP app work?
I am currently setting up two-factor authentication on my smartphone. How can I scan the QR code at the same time?
Can I access my mailbox without tow-factor-authentication?
What's encrypted communication?
How does my GMX account get into Mailvelope?
Why does the key have to be stored locally?
I forgot my key password. What can I do?
I lost my encryption data. What can I do?