Registro DMARC
v=DMARC1; p=none;

Registro IPv4
host: sumthinblue.com
class: IN
ttl: 13687
type: A
ip: 172.104.173.174

Servidores DNS Principal (mname) y Secundario (rname)
host: sumthinblue.com
class: IN
ttl: 20887
type: SOA
mname: ns1.sgpro3.fcomet.com
rname: root.sgpro3.fcomet.com
serial: 2025080601
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: sumthinblue.com
class: IN
ttl: 2888
type: MX
pri: 10
target: sgpro3.fcomet.com

Información TXT
host: sumthinblue.com
class: IN
ttl: 13689
type: TXT
txt: v=spf1 ip4:172.104.173.174 +a +mx +a:5817.submission.antispamcloud.com +a:release.antispamcloud.com -all
entries: Array