Registro DMARC
v=spf1 include:_spf.vist.is mx -all

Registro IPv4
host: smarinn.com
class: IN
ttl: 900
type: A
ip: 157.157.156.25

Servidores DNS Principal (mname) y Secundario (rname)
host: smarinn.com
class: IN
ttl: 21600
type: SOA
mname: ns0.1984.is
rname: hostmaster.1984.is
serial: 2021100433
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: smarinn.com
class: IN
ttl: 900
type: MX
pri: 10
target: smarinn.com

Información TXT
host: smarinn.com
class: IN
ttl: 900
type: TXT
txt: v=spf1 include:_spf.vist.is mx -all
entries: Array