Registro DMARC
v=DMARC1; p=reject; sp=quarantine

Registro IPv4
host: upgradecenter.ru
class: IN
ttl: 21600
type: A
ip: 5.23.103.137

Servidores DNS Principal (mname) y Secundario (rname)
host: upgradecenter.ru
class: IN
ttl: 21600
type: SOA
mname: ns1.reg.ru
rname: hostmaster.ns1.reg.ru
serial: 1734421164
refresh: 14400
retry: 3600
expire: 604800
minimum-ttl: 10800

Servidor de Correo
host: upgradecenter.ru
class: IN
ttl: 21600
type: MX
pri: 10
target: mail.upgradecenter.ru

Información TXT
host: upgradecenter.ru
class: IN
ttl: 21600
type: TXT
txt: @v=spf1 redirect=_spf.upgradecenter.ru -all
entries: Array

Información TXT
host: upgradecenter.ru
class: IN
ttl: 21600
type: TXT
txt: v=spf1 mx ip4:5.23.103.137 include:upgradecenter.ru ~all
entries: Array