Registro IPv4
host: pairfree.co.jp
class: IN
ttl: 3600
type: A
ip: 23.236.62.147

Servidores DNS Principal (mname) y Secundario (rname)
host: pairfree.co.jp
class: IN
ttl: 3600
type: SOA
mname: master.dns.ne.jp
rname: tech.sakura.ad.jp
serial: 2021031100
refresh: 3600
retry: 900
expire: 3600000
minimum-ttl: 3600

Servidor de Correo
host: pairfree.co.jp
class: IN
ttl: 3600
type: MX
pri: 10
target: pairfree.sakura.ne.jp