Registro DMARC
v=spf1 ip4:142.202.190.150  -all

Registro IPv4
host: 121computing.net
class: IN
ttl: 3600
type: A
ip: 142.202.190.150

Servidores DNS Principal (mname) y Secundario (rname)
host: 121computing.net
class: IN
ttl: 3600
type: SOA
mname: dns.121computing.net
rname: hostmaster.121computing.net
serial: 1502514457
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3601

Servidor de Correo
host: 121computing.net
class: IN
ttl: 3600
type: MX
pri: 0
target: 121computing.net

Información TXT
host: 121computing.net
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip4:142.202.190.150  -all
entries: Array