Registro DMARC
v=DMARC1; p=reject; rua=mailto:mailauth-reports@google.com

Registro IPv4
host: google.sc
class: IN
ttl: 300
type: A
ip: 172.217.18.99

Servidores DNS Principal (mname) y Secundario (rname)
host: google.sc
class: IN
ttl: 60
type: SOA
mname: ns1.google.com
rname: dns-admin.google.com
serial: 1002974787
refresh: 900
retry: 900
expire: 1800
minimum-ttl: 60

Servidor de Correo
host: google.sc
class: IN
ttl: 300
type: MX
pri: 0
target: smtp.google.com

Información TXT
host: google.sc
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array