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

Servidores DNS Principal (mname) y Secundario (rname)
host: icookcake.com
class: IN
ttl: 24692
type: SOA
mname: ns1.siteground.net
rname: root.esm20.siteground.biz
serial: 2020031163
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 86400

Información TXT
host: icookcake.com
class: IN
ttl: 14400
type: TXT
txt: v=spf1 +a +mx +a:esm20.siteground.biz  include:icookcake.com.spf.auto.dnssmarthost.net ~all
entries: Array