Registro DMARC
v=DMARC1; p=none; rua=mailto:abuse@theduttonfactor.com; fo=1

Registro IPv4
host: theduttonfactor.com
class: IN
ttl: 300
type: A
ip: 185.225.208.56

Servidores DNS Principal (mname) y Secundario (rname)
host: theduttonfactor.com
class: IN
ttl: 300
type: SOA
mname: ns3.l4dns.com
rname: it.ebusiness4us.com
serial: 24111821
refresh: 3600
retry: 300
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: theduttonfactor.com
class: IN
ttl: 300
type: MX
pri: 10
target: mail05.l4email.com

Información TXT
host: theduttonfactor.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:mail.mailingboss.net include:mail.l4email.com ~all
entries: Array