Registro DMARC
v=spf1 a mx ?all

Registro IPv4
host: spheredev.org
class: IN
ttl: 300
type: A
ip: 172.104.210.210

Servidores DNS Principal (mname) y Secundario (rname)
host: spheredev.org
class: IN
ttl: 300
type: SOA
mname: ns1.linode.com
rname: domains.casiotone.org
serial: 2021000070
refresh: 14400
retry: 14400
expire: 1209600
minimum-ttl: 300

Servidor de Correo
host: spheredev.org
class: IN
ttl: 300
type: MX
pri: 10
target: aspmx.l.google.com

Servidor de Correo
host: spheredev.org
class: IN
ttl: 300
type: MX
pri: 30
target: aspmx3.googlemail.com

Servidor de Correo
host: spheredev.org
class: IN
ttl: 300
type: MX
pri: 20
target: alt2.aspmx.l.google.com

Servidor de Correo
host: spheredev.org
class: IN
ttl: 300
type: MX
pri: 30
target: aspmx2.googlemail.com

Servidor de Correo
host: spheredev.org
class: IN
ttl: 300
type: MX
pri: 20
target: alt1.aspmx.l.google.com

Información TXT
host: spheredev.org
class: IN
ttl: 300
type: TXT
txt: v=spf1 a mx ?all
entries: Array