Registro DMARC
v=DMARC1; p=none; rua=mailto:postmaster@tflssb.com

Registro IPv4
host: tflssb.com
class: IN
ttl: 300
type: A
ip: 157.7.139.43

Servidores DNS Principal (mname) y Secundario (rname)
host: tflssb.com
class: IN
ttl: 1800
type: SOA
mname: aurora.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2416373022
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: tflssb.com
class: IN
ttl: 300
type: MX
pri: 10
target: mail.tflssb.com

Información TXT
host: tflssb.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 a mx ip4:157.7.139.43 ~all
entries: Array