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

Servidores DNS Principal (mname) y Secundario (rname)
host: schreiber-international.com
class: IN
ttl: 900
type: SOA
mname: ns-1312.awsdns-36.org
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: schreiber-international.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
entries: Array