Servidores DNS Principal (mname) y Secundario (rname)
host: psn.ru
class: IN
ttl: 2560
type: SOA
mname: ns-master.psn.ru
rname: hostmaster.psn.ru
serial: 1715884322
refresh: 16384
retry: 2048
expire: 1048576
minimum-ttl: 2560

Servidor de Correo
host: psn.ru
class: IN
ttl: 86400
type: MX
pri: 0
target: mail.psn.ru

Información TXT
host: psn.ru
class: IN
ttl: 86400
type: TXT
txt: v=spf1 +a +mx ~all
entries: Array