Registro DMARC
v=DMARC1; p=none; rua=mailto:re+qaitt7tdava@dmarc.postmarkapp.com; aspf=r;

Registro IPv4
host: it.pt
class: IN
ttl: 3600
type: A
ip: 193.136.221.2

Servidores DNS Principal (mname) y Secundario (rname)
host: it.pt
class: IN
ttl: 3600
type: SOA
mname: dns.av.it.pt
rname: postmaster.av.it.pt
serial: 2015040309
refresh: 1800
retry: 600
expire: 1296000
minimum-ttl: 3600

Servidor de Correo
host: it.pt
class: IN
ttl: 3600
type: MX
pri: 5
target: barracuda.lx.it.pt

Información TXT
host: it.pt
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a ip4:193.136.221.155  ip4:193.136.221.1  mx ~all
entries: Array