Registro IPv4
host: refer.ru
class: IN
ttl: 3600
type: A
ip: 46.4.75.61

Servidores DNS Principal (mname) y Secundario (rname)
host: refer.ru
class: IN
ttl: 3600
type: SOA
mname: ns2.sema.ru
rname: noc.sema.ru
serial: 2020071901
refresh: 86400
retry: 3600
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: refer.ru
class: IN
ttl: 3600
type: MX
pri: 10
target: mx0.refer.ru