Registro DMARC
v=DMARC1; p=reject; rua=mailto:30797da7@mxtoolbox.dmarc-report.com; ruf=mailto:30797da7@forensics.dmarc-report.com;

Servidores DNS Principal (mname) y Secundario (rname)
host: responder-store.com
class: IN
ttl: 300
type: SOA
mname: ns1.brandshelter.com
rname: tech.brandshelter.com
serial: 2026032800
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 300