Registro DMARC
v=spf1 mx ip4:216.55.182.252%20~all

Registro IPv4
host: serbiznet.com
class: IN
ttl: 3600
type: A
ip: 216.55.182.120

Servidores DNS Principal (mname) y Secundario (rname)
host: serbiznet.com
class: IN
ttl: 3600
type: SOA
mname: dns1.name-services.com
rname: info.name-services.com
serial: 1696880320
refresh: 172800
retry: 900
expire: 1814400
minimum-ttl: 300

Servidor de Correo
host: serbiznet.com
class: IN
ttl: 3600
type: MX
pri: 10
target: aspmx.l.google.com

Información TXT
host: serbiznet.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx ip4:216.55.182.252%20~all
entries: Array