Registro DMARC
v=DMARC1; p=quarantine; pct=100

Registro IPv4
host: elcotorreo.net
class: IN
ttl: 90
type: A
ip: 154.29.74.38

Servidores DNS Principal (mname) y Secundario (rname)
host: elcotorreo.net
class: IN
ttl: 21600
type: SOA
mname: ns1.ultahost.com
rname: info.ultahost.com
serial: 2020020203
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 86400

Información registro PTR (Reverso - Inverso)
host: elcotorreo.net
class: IN
ttl: 90
type: PTR
target: mail.elcotorreo.net

Servidor de Correo
host: elcotorreo.net
class: IN
ttl: 90
type: MX
pri: 20
target: mail.elcotorreo.net

Servidor de Correo
host: elcotorreo.net
class: IN
ttl: 90
type: MX
pri: 10
target: mail.elcotorreo.net

Información TXT
host: elcotorreo.net
class: IN
ttl: 90
type: TXT
txt: v=spf1 a mx ip4:154.29.74.38 ~all
entries: Array