Registro IPv4
host: mail.yandex.com
class: IN
ttl: 300
type: A
ip: 77.88.21.37

Servidores DNS Principal (mname) y Secundario (rname)
host: mail.yandex.com
class: IN
ttl: 600
type: SOA
mname: ns3.yandex.ru
rname: sysadmin.yandex.ru
serial: 1789988667
refresh: 900
retry: 600
expire: 3600000
minimum-ttl: 300

Servidor de Correo
host: mail.yandex.com
class: IN
ttl: 600
type: MX
pri: 0
target: mx.yandex.ru

Registro IPv6
host: mail.yandex.com
class: IN
ttl: 300
type: AAAA
ipv6: 2a02:6b8::a4