Registro IPv4
host: classes.that.school
class: IN
ttl: 14400
type: A
ip: 31.131.31.216

Servidores DNS Principal (mname) y Secundario (rname)
host: classes.that.school
class: IN
ttl: 14400
type: SOA
mname: pdns1.hostiq.ua
rname: hostmaster.hostiq.com.ua
serial: 2019091343
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 14400

Servidor de Correo
host: classes.that.school
class: IN
ttl: 3600
type: MX
pri: 50
target: alt2.aspmx.l.google.com

Servidor de Correo
host: classes.that.school
class: IN
ttl: 3600
type: MX
pri: 90
target: alt3.aspmx.l.google.com

Servidor de Correo
host: classes.that.school
class: IN
ttl: 3600
type: MX
pri: 10
target: aspmx.l.google.com

Servidor de Correo
host: classes.that.school
class: IN
ttl: 3600
type: MX
pri: 50
target: alt1.aspmx.l.google.com

Servidor de Correo
host: classes.that.school
class: IN
ttl: 3600
type: MX
pri: 90
target: alt4.aspmx.l.google.com