Registro DMARC
v=spf1 ip6:fdcf:abda:4154::/48 -all

Registro IPv4
host: illustrativemath.org
class: IN
ttl: 3600
type: A
ip: 103.224.182.247

Servidores DNS Principal (mname) y Secundario (rname)
host: illustrativemath.org
class: IN
ttl: 90
type: SOA
mname: ns1.abovedomains.com
rname: hostmaster.trellian.com
serial: 2026010501
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: illustrativemath.org
class: IN
ttl: 3600
type: MX
pri: 10
target: park-mx.above.com

Información TXT
host: illustrativemath.org
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip6:fdcf:abda:4154::/48 -all
entries: Array