I had the same problems. It seems like the IP of Elysium is possibly completely blacklisted @ gmx.de (one of the biggest mailproviders of .de/.ch/.at) - maybe it's just in a greylisting queue, so I have to wait a few hours, I'll see it. I tried it somewhere else and it worked.
The mail itself shouldn't be a problem according to Spam Assassins output (and the IP is also not included in any of the major blacklist providers):
X-Spam-Status: No, score=1.1 required=5.0 tests=HTML_MESSAGE,MIME_HTML_ONLY autolearn=no autolearn_force=no version=3.4.1