Registro DMARC
v=DMARC1; p=none;

Registro IPv4
host: citymetro.net
class: IN
ttl: 14400
type: A
ip: 151.242.37.121

Servidores DNS Principal (mname) y Secundario (rname)
host: citymetro.net
class: IN
ttl: 21600
type: SOA
mname: as1.cheapohosting.com
rname: root.as.cheapohosting.com
serial: 2026040401
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: citymetro.net
class: IN
ttl: 14400
type: MX
pri: 0
target: citymetro.net

Información TXT
host: citymetro.net
class: IN
ttl: 14400
type: TXT
txt: v=spf1 +a +mx +ip4:151.242.37.121 ~all
entries: Array