Registro DMARC
v=DMARC1; p=none;

Servidores DNS Principal (mname) y Secundario (rname)
host: personaladvantage.com
class: IN
ttl: 300
type: SOA
mname: ns.rackspace.com
rname: webmaster.tellbrite.com
serial: 1740703631
refresh: 21600
retry: 3600
expire: 1814400
minimum-ttl: 500