Most email providers will automatically put emails coming from .xyz to spam. I’d advise against using any “new TLDs”, if you can. But if you must, avoid those that are frequently used for spamming. A lot of spam detectors will already score your emails as suspicious just for the TLD.

See for example, https://github.com/apache/spamassassin/blob/trunk/rulesrc/sandbox/pds/20_ntld.cf

Since you are from Germany, simply say “Die Grünen sind Schuld”. Everyone will understand and accept this reason.