Registro DMARC
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:massmutual@rua.agari.com; ruf=mailto:massmutual@ruf.agari.com

Servidores DNS Principal (mname) y Secundario (rname)
host: massmutualnewsletter.biz
class: IN
ttl: 21600
type: SOA
mname: udns1.cscdns.net
rname: hostmaster.cscdns.net
serial: 2021060908
refresh: 86400
retry: 86400
expire: 86400
minimum-ttl: 86400

Servidor de Correo
host: massmutualnewsletter.biz
class: IN
ttl: 14400
type: MX
pri: 10
target: custmx.cscdns.net

Información TXT
host: massmutualnewsletter.biz
class: IN
ttl: 14400
type: TXT
txt: v=spf1 exists:%{i}._i.%{d}._d.espf.agari.com include:%{d}.22.spf-protect.agari.com -all
entries: Array