example: 192.150.2.1
20541:0da8:85a3:0:0:8a2e:0370:7334
www.sample.com
10 mail1.sample.com
20 mail2.sample.com
ns1.amazon.com
ns2.amazon.org
ns3.amazon.net
ns4.amazon.co.uk
"test1"
"test2"
"v=spf1 ip4:192.168.0.1/16-all"
2 12 5050 sip-server.example.com
3 15 5060 network.example.com
www.example.com