Registro DMARC
v=DMARC1; p=none; pct=100; rua=mailto:dmarc@fbl.optin.com;

Registro IPv4
host: great.com
class: IN
ttl: 300
type: A
ip: 141.193.213.20

Registro IPv4
host: great.com
class: IN
ttl: 300
type: A
ip: 141.193.213.21

Servidores DNS Principal (mname) y Secundario (rname)
host: great.com
class: IN
ttl: 1800
type: SOA
mname: koa.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2393747881
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: great.com
class: IN
ttl: 300
type: MX
pri: 5
target: alt1.aspmx.l.google.com

Servidor de Correo
host: great.com
class: IN
ttl: 300
type: MX
pri: 10
target: alt4.aspmx.l.google.com

Servidor de Correo
host: great.com
class: IN
ttl: 300
type: MX
pri: 10
target: alt3.aspmx.l.google.com

Servidor de Correo
host: great.com
class: IN
ttl: 300
type: MX
pri: 5
target: alt2.aspmx.l.google.com

Servidor de Correo
host: great.com
class: IN
ttl: 300
type: MX
pri: 0
target: aspmx.l.google.com

Información TXT
host: great.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 ip4:85.24.156.0/22 ?all
entries: Array

Información TXT
host: great.com
class: IN
ttl: 300
type: TXT
txt: 1password-site-verification=EKYZF6LSPZHDHHYPWV32VBZ6G4
entries: Array

Información TXT
host: great.com
class: IN
ttl: 300
type: TXT
txt: google-site-verification=ZxH-k_iI15VoFNYGdzg0SUJQWrqA0nNMkKpux6kaiFM
entries: Array