Registro DMARC
v=DMARC1; p=none; sp=none; pct=100; ri=86400      

Registro IPv4
host: ferrecsa.com.mx
class: IN
ttl: 3600
type: A
ip: 74.208.5.241

Servidores DNS Principal (mname) y Secundario (rname)
host: ferrecsa.com.mx
class: IN
ttl: 3600
type: SOA
mname: ns1.ferrecsa.com.mx
rname: root.ferrecsa.com.mx
serial: 68
refresh: 604800
retry: 86400
expire: 2419200
minimum-ttl: 604800

Servidor de Correo
host: ferrecsa.com.mx
class: IN
ttl: 3600
type: MX
pri: 0
target: mail.ferrecsa.com.mx

Información TXT
host: ferrecsa.com.mx
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip4:74.208.5.241 ~all
entries: Array