Registro DMARC
v=DMARC1;p=reject;rua=mailto:postmaster@business-key.com

Registro IPv4
host: business-key.com
class: IN
ttl: 300
type: A
ip: 212.92.101.45

Servidores DNS Principal (mname) y Secundario (rname)
host: business-key.com
class: IN
ttl: 1800
type: SOA
mname: eric.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2375657461
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: business-key.com
class: IN
ttl: 300
type: MX
pri: 10
target: emx.mail.ru

Información TXT
host: business-key.com
class: IN
ttl: 300
type: TXT
txt: google-site-verification=y2L29FJdMweoXIVVCAsyQPTjbfdlQ7Ooa6eODAboL8w
entries: Array

Información TXT
host: business-key.com
class: IN
ttl: 300
type: TXT
txt: mailru-verification: 0445c791a0f183f7
entries: Array

Información TXT
host: business-key.com
class: IN
ttl: 300
type: TXT
txt: yandex-verification: 43cc9ddebdb5899c
entries: Array

Información TXT
host: business-key.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 ip4:212.92.101.45 include:_spf.mail.ru ~all
entries: Array