Registro DMARC
v=DMARC1; p=none

Registro IPv4
host: fastsimple.com
class: IN
ttl: 60
type: A
ip: 88.99.177.74

Servidores DNS Principal (mname) y Secundario (rname)
host: fastsimple.com
class: IN
ttl: 1800
type: SOA
mname: ns1.dnsimple-edge.com
rname: admin.dnsimple.com
serial: 1464700074
refresh: 86400
retry: 7200
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: fastsimple.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mxb.mailgun.org

Servidor de Correo
host: fastsimple.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mxa.mailgun.org

Información TXT
host: fastsimple.com
class: IN
ttl: 60
type: TXT
txt: google-site-verification=8gsyqiqF3AmxzBPvUiTaGqDiPQgrLWS06LwnOjCdRtM
entries: Array

Información TXT
host: fastsimple.com
class: IN
ttl: 60
type: TXT
txt: v=spf1 include:_spf.transip.email include:mailgun.org ip4:88.99.177.74 ~all
entries: Array