Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc@lodebernal.com; ruf=mailto:dmarc-forensics@lodebernal.com; fo=1; pct=100; ri=86400

Servidores DNS Principal (mname) y Secundario (rname)
host: lodebernal.com
class: IN
ttl: 900
type: SOA
mname: ns-1258.awsdns-29.org
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400