Registro IPv4
host: mailru.su
class: IN
ttl: 3600
type: A
ip: 217.69.128.196

Servidores DNS Principal (mname) y Secundario (rname)
host: mailru.su
class: IN
ttl: 3600
type: SOA
mname: ns1.mail.ru
rname: hostmaster.mail.ru
serial: 3582658804
refresh: 3600
retry: 900
expire: 604800
minimum-ttl: 43200

Servidor de Correo
host: mailru.su
class: IN
ttl: 3600
type: MX
pri: 10
target: mxfwd.mail.ru