Registro DMARC
v=DMARC1; p=reject; sp=reject; rua=mailto:noreply@hydrangeas.info; ruf=mailto:noreply@hydrangeas.info; rf=afrf; pct=100; ri=86400

Servidores DNS Principal (mname) y Secundario (rname)
host: hydrangeas.info
class: IN
ttl: 3600
type: SOA
mname: dns.hydrangeas.info
rname: hostmaster.hydrangeas.info
serial: 1555983683
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3601

Servidor de Correo
host: hydrangeas.info
class: IN
ttl: 3600
type: MX
pri: 0
target: hydrangeas.info