Registro DMARC
v=DMARC1; p=none; sp=none; rua=mailto:re+dcf327edcbd6@inbound.dmarcdigests.com; pct=100

Servidores DNS Principal (mname) y Secundario (rname)
host: gulmountainhotel.com
class: IN
ttl: 3600
type: SOA
mname: ns1.openprovider.nl
rname: dns.openprovider.eu
serial: 2026041496
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600