Registro DMARC
v=DMARC1;p=reject;rua=mailto:29506ecf8e@rua.easydmarc.com;ruf=mailto:29506ecf8e@ruf.easydmarc.com;aspf=s;adkim=s

Servidores DNS Principal (mname) y Secundario (rname)
host: collectorexpress.com
class: IN
ttl: 900
type: SOA
mname: ns-22.awsdns-02.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: collectorexpress.com
class: IN
ttl: 86400
type: TXT
txt: v=spf1 -all
entries: Array