Sure I’ll use server… but by doing System Settings, Server Templates, Default Settings, DNS for Domains, Hostname for MX record I though I set it to Virtualmin to use the name I told it to use… and now it does not…
I would think it has something to do with o-arp.de, your not the only person witht that and also its just the way DNS works, needs to go to your machines IP and not some huge network. Joe & llia will explain it fully soon. Networking is amazing, very deep stuff. Also expect a tick off for showing your domain.
Bottom bit is ok but your hostame maybe still your main issue.
Checkout mxtoolbox.com it will point out errors etc.
VM suggestions are never 100% even for me. Not that I am anything.