Servidores DNS Principal (mname) y Secundario (rname)
host: us-rp.org
class: IN
ttl: 1800
type: SOA
mname: millie.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2342207159
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: us-rp.org
class: IN
ttl: 300
type: MX
pri: 10
target: mx.postal.us-rp.email

Información TXT
host: us-rp.org
class: IN
ttl: 300
type: TXT
txt: v=spf1 a mx include:spf.postal.us-rp.email ~all
entries: Array