Registro DMARC
v=DMARC1; p=reject; adkim=r; aspf=r; rf=afrf; pct=100; rua=mailto:servicemail@21vek.by; ruf=mailto:servicemail@21vek.by;

Registro IPv4
host: 21vek.by
class: IN
ttl: 1115
type: A
ip: 178.163.236.85

Servidores DNS Principal (mname) y Secundario (rname)
host: 21vek.by
class: IN
ttl: 3600
type: SOA
mname: ns1.yandexcloud.net
rname: mx.cloud.yandex.net
serial: 1
refresh: 10800
retry: 900
expire: 604800
minimum-ttl: 900

Servidor de Correo
host: 21vek.by
class: IN
ttl: 300
type: MX
pri: 10
target: mx.yandex.ru

Información TXT
host: 21vek.by
class: IN
ttl: 300
type: TXT
txt: unisender-go-validate-hash=7889d93541c243b58f538f6e0df17999
entries: Array

Información TXT
host: 21vek.by
class: IN
ttl: 300
type: TXT
txt: google-site-verification=FYaM67wN-OpYYGOJ30MJZxBgtkv5aY-NXYj8h37tugY
entries: Array

Información TXT
host: 21vek.by
class: IN
ttl: 300
type: TXT
txt: v=spf1 ip4:82.209.233.74 ip4:178.163.236.133 include:_spf.yandex.net include:spf.smtp.bz include:spf.unisender.ru include:spf.mindbox.ru ~all
entries: Array