Registro DMARC
v=DMARC1; p=reject; aspf=s; adkim=s;

Registro IPv4
host: esi-cfd.com
class: IN
ttl: 10800
type: A
ip: 217.70.184.55

Servidores DNS Principal (mname) y Secundario (rname)
host: esi-cfd.com
class: IN
ttl: 10800
type: SOA
mname: ns1.gandi.net
rname: hostmaster.gandi.net
serial: 1743638400
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 10800

Información TXT
host: esi-cfd.com
class: IN
ttl: 10800
type: TXT
txt: v=spf1 -all
entries: Array