Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; fo=1

Registro IPv4
host: challengeaircargo.org
class: IN
ttl: 3600
type: A
ip: 165.160.15.20

Registro IPv4
host: challengeaircargo.org
class: IN
ttl: 3600
type: A
ip: 165.160.13.20

Servidores DNS Principal (mname) y Secundario (rname)
host: challengeaircargo.org
class: IN
ttl: 3600
type: SOA
mname: shadowcat-i.ups.com
rname: hostmaster.nowhere.null
serial: 2023100417
refresh: 21600
retry: 1800
expire: 2419200
minimum-ttl: 3600

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

Información TXT
host: challengeaircargo.org
class: IN
ttl: 3600
type: TXT
txt: a8a68b24-f342-4fb7-b805-22953f8a81df
entries: Array