Registro DMARC
v=DMARC1; p=none; adkim=r; aspf=r; pct=100;

Servidores DNS Principal (mname) y Secundario (rname)
host: mcn.net
class: IN
ttl: 1800
type: SOA
mname: carl.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2365691713
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: mcn.net
class: IN
ttl: 28800
type: MX
pri: 5
target: mx02.earthlink-vadesecure.net

Servidor de Correo
host: mcn.net
class: IN
ttl: 28800
type: MX
pri: 5
target: mx01.earthlink-vadesecure.net

Servidor de Correo
host: mcn.net
class: IN
ttl: 28800
type: MX
pri: 5
target: mx04.earthlink-vadesecure.net

Servidor de Correo
host: mcn.net
class: IN
ttl: 28800
type: MX
pri: 5
target: mx03.earthlink-vadesecure.net

Información TXT
host: mcn.net
class: IN
ttl: 28800
type: TXT
txt: v=spf1 include:earthlink.net -all
entries: Array

host: mcn.net
class: IN
ttl: 28800
type: NAPTR
order: 0
pref: 0
flags: s
services: SIP+D2U
regex: 
replacement: _sip._udp.earthlink.net

host: mcn.net
class: IN
ttl: 28800
type: NAPTR
order: 0
pref: 50
flags: s
services: SIP+D2T
regex: 
replacement: _sip._tcp.earthlink.net