my-rpi.de.		30 IN SOA ns1.unser-dns.de. hostmaster.cn-systems.org. (
				2017020501 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

my-rpi.de.		30 IN A	46.4.72.89

Mail exchangers:
my-rpi.de.		30 IN MX 10 mail.my-rpi.de.

Name servers:
my-rpi.de.		30 IN NS ns1.unser-dns.de.
my-rpi.de.		30 IN NS ns2.unser-dns.de.