Registro DMARC
v=DMARC1; p=none;

Registro IPv4
host: contabo.es
class: IN
ttl: 3600
type: A
ip: 173.212.204.190

Servidores DNS Principal (mname) y Secundario (rname)
host: contabo.es
class: IN
ttl: 21600
type: SOA
mname: ns1.giga-dns.de
rname: nameserver.kambach.net
serial: 2017121202
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: contabo.es
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.contabo.es