Registro DMARC
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:rua-dmarc@bbva.com; ruf=mailto:ruf-dmarc@bbva.com

Servidores DNS Principal (mname) y Secundario (rname)
host: serviciobancomer.com
class: IN
ttl: 21600
type: SOA
mname: a3-66.akam.net
rname: hostmaster.akamai.com
serial: 1553187704
refresh: 43200
retry: 7200
expire: 604800
minimum-ttl: 7200

Servidor de Correo
host: serviciobancomer.com
class: IN
ttl: 5485
type: MX
pri: 20
target: mail2.serviciobancomer.com

Servidor de Correo
host: serviciobancomer.com
class: IN
ttl: 5485
type: MX
pri: 10
target: mail.serviciobancomer.com

Información TXT
host: serviciobancomer.com
class: IN
ttl: 10800
type: TXT
txt: v=spf1 ip4:148.244.43.84 ip4:148.244.43.71 ip4:148.244.43.157 ~all
entries: Array