Registro DMARC
v=DMARC1; p=reject; sp=reject; rua=mailto:rgault@rtc-group.com; ruf=mailto:rgault@rtc-group.com; rf=afrf; pct=100; ri=86400

Registro IPv4
host: rtcsupport.org
class: IN
ttl: 300
type: A
ip: 66.55.3.22

Servidores DNS Principal (mname) y Secundario (rname)
host: rtcsupport.org
class: IN
ttl: 1800
type: SOA
mname: maxine.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2372105940
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: rtcsupport.org
class: IN
ttl: 300
type: MX
pri: 10
target: mail.rtcsupport.org

Información TXT
host: rtcsupport.org
class: IN
ttl: 300
type: TXT
txt: v=spf1 ip4:66.55.3.25/28 ~all
entries: Array