Registro DMARC
v=DMARC1; p=reject; rua=mailto:l3zf8gp7@ag.dmarcian.com;

Registro IPv4
host: expresstaxonline.net
class: IN
ttl: 300
type: A
ip: 20.119.0.58

Servidores DNS Principal (mname) y Secundario (rname)
host: expresstaxonline.net
class: IN
ttl: 3600
type: SOA
mname: ns1-07.azure-dns.com
rname: hostmaster.markmonitor.com
serial: 2023052402
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 300

Información TXT
host: expresstaxonline.net
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array