Registro IPv4
host: airmail.com
class: IN
ttl: 3600
type: A
ip: 141.8.224.143

Servidores DNS Principal (mname) y Secundario (rname)
host: airmail.com
class: IN
ttl: 3600
type: SOA
mname: dns088.a.register.com
rname: root.register.com
serial: 2015011301
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 3600