Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; fo=1

Servidores DNS Principal (mname) y Secundario (rname)
host: fpbcc.org
class: IN
ttl: 10555
type: SOA
mname: da2.unmc.edu
rname: dnsadmin.unmc.edu
serial: 10
refresh: 1800
retry: 6300
expire: 2592000
minimum-ttl: 900

Información TXT
host: fpbcc.org
class: IN
ttl: 10555
type: TXT
txt: v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
entries: Array