Registro DMARC
v=DMARC1;p=none;rua=mailto:dmarc_agg@vali.email

Servidores DNS Principal (mname) y Secundario (rname)
host: Pepsicola.com
class: IN
ttl: 21600
type: SOA
mname: ns1.pbsg.com
rname: hostmaster.pepsico.com
serial: 12
refresh: 14400
retry: 900
expire: 2419200
minimum-ttl: 3600