Registro DMARC
v=DMARC1;p=reject;rua=mailto:dnsadmin@gainwelltechnologies.com;adkim=s;aspf=s;

Servidores DNS Principal (mname) y Secundario (rname)
host: hmsy.biz
class: IN
ttl: 3600
type: SOA
mname: plddins01.net.gainwelltechnologies.com
rname: dnsadmin.gainwelltechnologies.com
serial: 9
refresh: 10800
retry: 3600
expire: 2419200
minimum-ttl: 3600

Servidor de Correo
host: hmsy.biz
class: IN
ttl: 3600
type: MX
pri: 0
target: 

Información TXT
host: hmsy.biz
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array