Registro DMARC
v=spf1 a -all

Registro IPv4
host: mydevelopersworld.com
class: IN
ttl: 600
type: A
ip: 15.197.240.20

Servidores DNS Principal (mname) y Secundario (rname)
host: mydevelopersworld.com
class: IN
ttl: 300
type: SOA
mname: dns.parkpage.foundationapi.com
rname: abuse.confluence-networks.com
serial: 2011062801
refresh: 3600
retry: 900
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: mydevelopersworld.com
class: IN
ttl: 300
type: MX
pri: 300
target: ~