Registro IPv4
host: letspostfree.com
class: IN
ttl: 300
type: A
ip: 172.67.172.233

Registro IPv4
host: letspostfree.com
class: IN
ttl: 300
type: A
ip: 104.21.30.124

Servidores DNS Principal (mname) y Secundario (rname)
host: letspostfree.com
class: IN
ttl: 1800
type: SOA
mname: edna.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2356462958
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

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

Registro IPv6
host: letspostfree.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3037::ac43:ace9

Registro IPv6
host: letspostfree.com
class: IN
ttl: 300
type: AAAA
ipv6: 2606:4700:3033::6815:1e7c