Registro DMARC
v=spf1 ip4:74.208.195.189 +a +mx -all

Registro IPv4
host: burkcorp.com
class: IN
ttl: 7200
type: A
ip: 66.219.169.172

Servidores DNS Principal (mname) y Secundario (rname)
host: burkcorp.com
class: IN
ttl: 7200
type: SOA
mname: NS35.WORLDNIC.com
rname: namehost.WORLDNIC.com
serial: 111080110
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: burkcorp.com
class: IN
ttl: 7200
type: MX
pri: 10
target: smtp.secureserver.net

Servidor de Correo
host: burkcorp.com
class: IN
ttl: 7200
type: MX
pri: 10
target: mailstore1.secureserver.net