Registro IPv4
host: pc4school.com
class: IN
ttl: 1800
type: A
ip: 148.72.158.139

Servidores DNS Principal (mname) y Secundario (rname)
host: pc4school.com
class: IN
ttl: 7200
type: SOA
mname: NS1.MYDOMAIN.com
rname: namehost\@WORLDNIC.com
serial: 124033119
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: pc4school.com
class: IN
ttl: 1800
type: MX
pri: 10
target: mail.pc4school.com

Servidor de Correo
host: pc4school.com
class: IN
ttl: 1800
type: MX
pri: 20
target: mx.pc4school.com

Información TXT
host: pc4school.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx ip4:148.72.158.139 mx:mail.pc4school.com -all
entries: Array