Registro DMARC
v=DMARC1;p=quarantine;pct=100;fo=1

Registro IPv4
host: greatcolumbusjobs.com
class: IN
ttl: 90
type: A
ip: 34.218.18.171

Servidores DNS Principal (mname) y Secundario (rname)
host: greatcolumbusjobs.com
class: IN
ttl: 900
type: SOA
mname: ns-179.awsdns-22.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: greatcolumbusjobs.com
class: IN
ttl: 300
type: MX
pri: 10
target: inbound-smtp.us-west-2.amazonaws.com

Información TXT
host: greatcolumbusjobs.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:amazonses.com ~all
entries: Array