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

Registro IPv4
host: corporate.bmo.com
class: IN
ttl: 90
type: A
ip: 23.55.159.135

Servidores DNS Principal (mname) y Secundario (rname)
host: corporate.bmo.com
class: IN
ttl: 300
type: SOA
mname: ns1-200.akam.net
rname: hostmaster.bmo.com
serial: 2013051405
refresh: 300
retry: 600
expire: 2419200
minimum-ttl: 300

Información TXT
host: corporate.bmo.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array