Registro DMARC
v=DMARC1; p=none; rua=mailto:dmarc+246464@smartemailing.cz; fo=1

Registro IPv4
host: duos.sk
class: IN
ttl: 60
type: A
ip: 31.31.74.46

Servidores DNS Principal (mname) y Secundario (rname)
host: duos.sk
class: IN
ttl: 1800
type: SOA
mname: ns1.websupport.sk
rname: admin.websupport.sk
serial: 1747048688
refresh: 7200
retry: 2048
expire: 1048576
minimum-ttl: 2560

Servidor de Correo
host: duos.sk
class: IN
ttl: 600
type: MX
pri: 10
target: mx20.websupport.sk

Servidor de Correo
host: duos.sk
class: IN
ttl: 600
type: MX
pri: 5
target: mx10.websupport.sk

Información TXT
host: duos.sk
class: IN
ttl: 600
type: TXT
txt: google-site-verification=q4ySEOKpSXpCXHY4nyCuXZ4Y3fe6B4Gs8i-RHlzOhpY
entries: Array

Información TXT
host: duos.sk
class: IN
ttl: 600
type: TXT
txt: v=spf1 a mx include:_spf.m1.websupport.sk include:spf.smartemailing.cz ?all
entries: Array

Información TXT
host: duos.sk
class: IN
ttl: 600
type: TXT
txt: spf2.0/pra a mx include:_sid.m1.websupport.sk ?all
entries: Array