Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_agg@vali.email;

Registro IPv4
host: Mlb.tv
class: IN
ttl: 3505
type: A
ip: 34.102.169.19

Servidores DNS Principal (mname) y Secundario (rname)
host: Mlb.tv
class: IN
ttl: 900
type: SOA
mname: ns-1370.awsdns-43.org
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

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