Registro DMARC
v=spf1 a:%{i}.trusted.%{h} include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email redirect=%{h} ~all

Registro IPv4
host: adclasfree.com
class: IN
ttl: 1800
type: A
ip: 212.83.155.54

Servidores DNS Principal (mname) y Secundario (rname)
host: adclasfree.com
class: IN
ttl: 3601
type: SOA
mname: dns1.registrar-servers.com
rname: hostmaster.registrar-servers.com
serial: 1731708095
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3601

Servidor de Correo
host: adclasfree.com
class: IN
ttl: 1800
type: MX
pri: 10
target: adclasfree.com

Información TXT
host: adclasfree.com
class: IN
ttl: 1800
type: TXT
txt: v=spf1 a mx ip4:212.83.155.54 ip4:212.83.155.218 ip4:212.83.155.202 ip4:212.83.155.91 -all
entries: Array