Registro DMARC
v=DMARC1;p=none;fo=1; aspf=s

Servidores DNS Principal (mname) y Secundario (rname)
host: Nyshealthdepartment.info
class: IN
ttl: 900
type: SOA
mname: ns-227.awsdns-28.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: Nyshealthdepartment.info
class: IN
ttl: 300
type: TXT
txt: v=spf1 ip4:103.133.183.0/24 ip4:5.230.0.0/16 ip4:5.231.0.0/16 ip4:172.94.48.0/24 ip4:172.94.88.0/24 -all
entries: Array