Registro DMARC
v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;rf=afrf;ri=86400

Registro IPv4
host: firthpetroleum.com
class: IN
ttl: 3600
type: A
ip: 185.151.30.141

Servidores DNS Principal (mname) y Secundario (rname)
host: firthpetroleum.com
class: IN
ttl: 3600
type: SOA
mname: ns1.stackdns.com
rname: hostmaster.stackdns.com
serial: 1718904819
refresh: 1800
retry: 900
expire: 1209600
minimum-ttl: 300

Servidor de Correo
host: firthpetroleum.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mx.stackmail.com

Información TXT
host: firthpetroleum.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.stackmail.com a mx -all
entries: Array

Registro IPv6
host: firthpetroleum.com
class: IN
ttl: 3600
type: AAAA
ipv6: 2a07:7800::141