Registro IPv4
host: helloinvoice.com
class: IN
ttl: 14400
type: A
ip: 75.2.103.23

Servidores DNS Principal (mname) y Secundario (rname)
host: helloinvoice.com
class: IN
ttl: 2197
type: SOA
mname: pdns1.serverfreak.biz
rname: root.pdns1.serverfreak.biz
serial: 2025060901
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: helloinvoice.com
class: IN
ttl: 14400
type: MX
pri: 0
target: helloinvoice.com

Información TXT
host: helloinvoice.com
class: IN
ttl: 14400
type: TXT
txt: v=spf1 +a +mx +ip4:75.2.103.23 include:spf.sfdns.net ~all
entries: Array