Registro DMARC
v=DMARC1;p=none;sp=none;pct=100;rua=mailto:abuse@grbc.net;ruf=mailto:abuse@grbc.net;ri=86400;aspf=r;adkim=r;fo=1;

Registro IPv4
host: grbc.net
class: IN
ttl: 1799
type: A
ip: 141.193.213.20

Registro IPv4
host: grbc.net
class: IN
ttl: 1799
type: A
ip: 141.193.213.21

Servidores DNS Principal (mname) y Secundario (rname)
host: grbc.net
class: IN
ttl: 3601
type: SOA
mname: dns1.registrar-servers.com
rname: hostmaster.registrar-servers.com
serial: 1732612027
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3601

Servidor de Correo
host: grbc.net
class: IN
ttl: 1799
type: MX
pri: 10
target: mail.grbc.net

Información TXT
host: grbc.net
class: IN
ttl: 1799
type: TXT
txt: v=spf1 a ip4:173.244.255.49 ip4:173.244.254.222 ip4:173.244.254.230 ip4:216.166.224.8/29 ~all
entries: Array