$ORIGIN .
$TTL 600	; 10 minutes
ods			IN SOA	ns1.ods. postmaster.ods. (
				1010       ; serial
				1200       ; refresh (20 minutes)
				180        ; retry (3 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)
			NS	ns1.ods.
			NS	ns2.ods.
			A	192.0.2.1
			MX	10 mail.ods.
$ORIGIN ods.
mail			A	192.0.2.1
ns1			A	192.0.2.1
ns2			A	192.0.2.1
$TTL 7200	; 2 hours