After March 31, 2020, you will no longer be able to access your emails via the GMX Mail App for Windows Desktop. This will not affect your emails and they can still be accessed via other means (such as Web Login, GMX MailCheck and the GMX Mail App for Android and iOS).
Only email drafts and email signatures that were saved exclusively in the GMX Mail App for Windows Desktop will be lost upon termination of the service. We therefore recommend that you check both and then back up any drafts and signatures that you still want to keep on your computer. You can then continue to use this data in another way.