Registro DMARC
v=DMARC1; rua=mailto:dmarc@proeng21.ru; adkim=r; sp=reject; p=reject

Registro IPv4
host: proeng21.ru
class: IN
ttl: 2801
type: A
ip: 15.204.231.149

Servidores DNS Principal (mname) y Secundario (rname)
host: proeng21.ru
class: IN
ttl: 2801
type: SOA
mname: ns1.smartape.ru
rname: info.proeng21.ru
serial: 2026101504
refresh: 10800
retry: 3600
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: proeng21.ru
class: IN
ttl: 2802
type: MX
pri: 10
target: mail.proeng21.ru

Servidor de Correo
host: proeng21.ru
class: IN
ttl: 2802
type: MX
pri: 20
target: mail.proeng21.ru

Información TXT
host: proeng21.ru
class: IN
ttl: 2802
type: TXT
txt: v=spf1 a mx ip4:15.204.231.149 -all
entries: v=spf1 a mx ip4:15.204.231.149 -all