Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:rua+dxlg.com@dmarc.barracudanetworks.com; ruf=mailto:ruf+dxlg.com@dmarc.barracudanetworks.com

Servidores DNS Principal (mname) y Secundario (rname)
host: dxldigital.com
class: IN
ttl: 3600
type: SOA
mname: ns1-07.azure-dns.com
rname: azuredns-hostmaster.microsoft.com
serial: 1
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 300

Información TXT
host: dxldigital.com
class: IN
ttl: 3600
type: TXT
txt: "v=spf1 -all"
entries: Array