A few years back, I opened a GMX account.
Then something happened. At some point it refused to open. I was a bit frantic, as I was using it for something important, and I tried to reach the American GMX offices both by letter and telephone(!). To no avail.
Now I tried again, because it was a back-up verification email and it was easier than opening a new one elsewhere. I tried it, and it didn't surprise me that it said "no such address," because I figured it would have expired long ago. But when I went to start it up again as new, the site claimed I couldn't have it because it was already in use.
So, one screen says there's no such account, and another screen says it already exists.
What would you do? I mean, other than giving up on GMX entirely and telling people never to use it?