Registro DMARC
v=DMARC1; p=quarantine; pct=100; rua=mailto:alertas@btu.com.mx; ruf=mailto:alertas@btu.com.mx

Registro IPv4
host: btu.com.mx
class: IN
ttl: 300
type: A
ip: 201.131.21.96

Servidores DNS Principal (mname) y Secundario (rname)
host: btu.com.mx
class: IN
ttl: 1800
type: SOA
mname: rocky.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2390063990
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: btu.com.mx
class: IN
ttl: 300
type: MX
pri: 1
target: proxmox.btu.com.mx

Información TXT
host: btu.com.mx
class: IN
ttl: 300
type: TXT
txt: v=spf1 +mx +a +ip4:201.131.21.96 -all
entries: Array