Registro DMARC
v=DMARC1;p=reject;rua=mailto:dmarc_reports@doi.gov,mailto:reports@dmarc.cyber.dhs.gov

Registro IPv4
host: sdmmp.com
class: IN
ttl: 300
type: A
ip: 137.227.229.78

Servidores DNS Principal (mname) y Secundario (rname)
host: sdmmp.com
class: IN
ttl: 1800
type: SOA
mname: chin.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2409969967
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Información TXT
host: sdmmp.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: Array