I recently decided to migrate my mailserver away from the (old) Uberspace 6 to a new, self administrated machine. Uberspace has been great but over time I demanded more features than they offer. Due to the fact that I want to keep the mailserver for my primary mail address separated from my main server, I once again compared multiple virtual server/cloud server hosters. I decided to give Hetzners new Cloud Server a go as you can use custom images to build the OS (Debian is the distribution of my choice) as you like.