dfdu.org.		30 IN SOA ns1.cyon.ch. server.cyon.ch. (
				2021012677 ; serial
				86400      ; refresh (1 day)
				7200       ; retry (2 hours)
				3600000    ; expire (5 weeks 6 days 16 hours)
				86400      ; minimum (1 day)
				)

dfdu.org.		30 IN TXT "v=spf1 +a +mx +ip4:194.126.200.0/24 +ip4:149.126.0.0/21
-all"

dfdu.org.		30 IN A	149.126.4.81
dfdu.org.		30 IN AAAA 2a01:ab20:0:4::81

Mail exchangers:
dfdu.org.		30 IN MX 0 dfdu.org.

Name servers:
dfdu.org.		30 IN NS ns1.cyon.ch.
dfdu.org.		30 IN NS ns2.cyon.ch.