Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; fo=1

Servidores DNS Principal (mname) y Secundario (rname)
host: thecasualwing.com
class: IN
ttl: 17627
type: SOA
mname: ns1.brandshelter.com
rname: tech.brandshelter.com
serial: 2026032501
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 300