Registro DMARC
v=DMARC1; p=quarantine

Servidores DNS Principal (mname) y Secundario (rname)
host: ticktock.com
class: IN
ttl: 300
type: SOA
mname: ns1.dnsimple.com
rname: admin.dnsimple.com
serial: 1423353532
refresh: 86400
retry: 7200
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: ticktock.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.protonmail.ch

Servidor de Correo
host: ticktock.com
class: IN
ttl: 3600
type: MX
pri: 20
target: mailsec.protonmail.ch

Información TXT
host: ticktock.com
class: IN
ttl: 600
type: TXT
txt: protonmail-verification=0d462e7f8c854fe77cf8609796bb025a3da32d4d
entries: Array

Información TXT
host: ticktock.com
class: IN
ttl: 600
type: TXT
txt: v=spf1 include:_spf.protonmail.ch ~all
entries: Array