Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com;

Servidores DNS Principal (mname) y Secundario (rname)
host: insidehk.com
class: IN
ttl: 1800
type: SOA
mname: blue.foundationdns.com
rname: dns.cloudflare.com
serial: 2409694403
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Información TXT
host: insidehk.com
class: IN
ttl: 14895
type: TXT
txt: v=spf1 ~all
entries: Array