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

Servidores DNS Principal (mname) y Secundario (rname)
host: gruposocial.info
class: IN
ttl: 3600
type: SOA
mname: nameserver01.mi.com.co
rname: hostmaster.gruposocial.info
serial: 0
refresh: 10800
retry: 3600
expire: 1209600
minimum-ttl: 3600

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