Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email;

Servidores DNS Principal (mname) y Secundario (rname)
host: ande-ag.net
class: IN
ttl: 900
type: SOA
mname: ns-500.awsdns-62.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: ande-ag.net
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array