Servidores DNS Principal (mname) y Secundario (rname)
host: ola49.ru
class: IN
ttl: 3600
type: SOA
mname: noginsk.ens.mail.ru
rname: noreply.biz.mail.ru
serial: 2023030803
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: ola49.ru
class: IN
ttl: 3600
type: MX
pri: 10
target: emx.mail.ru

Información TXT
host: ola49.ru
class: IN
ttl: 3600
type: TXT
txt: v=spf1 redirect=_spf.mail.ru
entries: Array