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

Servidores DNS Principal (mname) y Secundario (rname)
host: nonstop-webs.net
class: IN
ttl: 21600
type: SOA
mname: infoblox1.anma1.navisite.com
rname: hostmaster.navisite.com
serial: 5
refresh: 10800
retry: 3600
expire: 2592000
minimum-ttl: 900

Información TXT
host: nonstop-webs.net
class: IN
ttl: 21600
type: TXT
txt: v=spf1 -all
entries: Array