Registro DMARC
v=DMARC1; p=none; rua=fc6c5627cba8530@rep.dmarcanalyzer.com; ruf=fc6c5627cba8530@for.dmarcanalyzer.com; sp=none; fo=1

Servidores DNS Principal (mname) y Secundario (rname)
host: s1email.com
class: IN
ttl: 900
type: SOA
mname: ns-665.awsdns-19.net
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: s1email.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array