Registro DMARC
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:soporte@sim.net.mx;ruf=mailto:soporte@sim.net.mx;ri=86400;aspf=s;adkim=s;fo=1

Registro IPv4
host: sim.net.mx
class: IN
ttl: 600
type: A
ip: 200.57.186.50

Servidores DNS Principal (mname) y Secundario (rname)
host: sim.net.mx
class: IN
ttl: 600
type: SOA
mname: ns1.sim.net.mx
rname: hostmaster.sim.net.mx
serial: 2016060801
refresh: 3600
retry: 600
expire: 1212000
minimum-ttl: 1000

Servidor de Correo
host: sim.net.mx
class: IN
ttl: 600
type: MX
pri: 10
target: mx.sim.net.mx

Servidor de Correo
host: sim.net.mx
class: IN
ttl: 600
type: MX
pri: 20
target: email.sim.net.mx

Información TXT
host: sim.net.mx
class: IN
ttl: 600
type: TXT
txt: v=spf1 ip4:200.57.179.10 ip4:200.57.186.51 -all
entries: Array