Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; fo=1; ri=86400

Registro IPv4
host: levis.com
class: IN
ttl: 300
type: A
ip: 204.74.99.100

Servidores DNS Principal (mname) y Secundario (rname)
host: levis.com
class: IN
ttl: 21600
type: SOA
mname: nans1.levi.com
rname: postmaster.nans1.levis.com
serial: 2013021472
refresh: 3600
retry: 600
expire: 604800
minimum-ttl: 86400