Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc@mtahq.org; mailto:dmarc_agg@vali.email; ruf=mailto:dmarc@mtahq.org; aspf=s; adkim=s

Registro IPv4
host: grandcentralcentennial.com
class: IN
ttl: 3600
type: A
ip: 170.28.137.108

Servidores DNS Principal (mname) y Secundario (rname)
host: grandcentralcentennial.com
class: IN
ttl: 7200
type: SOA
mname: NS75.WORLDNIC.com
rname: namehost\@WORLDNIC.com
serial: 124100208
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Información TXT
host: grandcentralcentennial.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array