Registro DMARC
v=DMARC1;p=reject;

Registro IPv4
host: mycrlstudy.us
class: IN
ttl: 14400
type: A
ip: 165.160.13.20

Registro IPv4
host: mycrlstudy.us
class: IN
ttl: 14400
type: A
ip: 165.160.15.20

Servidores DNS Principal (mname) y Secundario (rname)
host: mycrlstudy.us
class: IN
ttl: 14400
type: SOA
mname: dns1.cscdns.net
rname: hostmaster.cscdns.net
serial: 2024090304
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 14400

Información TXT
host: mycrlstudy.us
class: IN
ttl: 14400
type: TXT
txt: v=spf1 -all
entries: Array