Registro DMARC
v=DMARC1; p=none; aspf=r; adkim=r;

Registro IPv4
host: usdinstitute.com
class: IN
ttl: 21600
type: A
ip: 35.212.18.25

Servidores DNS Principal (mname) y Secundario (rname)
host: usdinstitute.com
class: IN
ttl: 14400
type: SOA
mname: ns1.siteground.net
rname: root.giowm1203.siteground.biz
serial: 100407
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: usdinstitute.com
class: IN
ttl: 21600
type: MX
pri: 0
target: usdinstitute-com.mail.protection.outlook.com

Información TXT
host: usdinstitute.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.protection.outlook.com include:usdinstitute.com.spf.auto.dnssmarthost.net -all
entries: Array