Registro DMARC
v=DMARC1; p=reject; sp=reject; pct=100; rua=mailto:adobe@rua.agari.com; ruf=mailto:adobe@ruf.agari.com; fo=1

Servidores DNS Principal (mname) y Secundario (rname)
host: proofhq.net
class: IN
ttl: 900
type: SOA
mname: ns-786.awsdns-34.net
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400