Registro DMARC
v=DMARC1; rua=mailto:postmaster@opckursk.ru; ruf=mailto:postmaster@opckursk.ru; sp=none\; fo=0\

Servidores DNS Principal (mname) y Secundario (rname)
host: opckursk.ru
class: IN
ttl: 3600
type: SOA
mname: ns3-l2.nic.ru
rname: dns.nic.ru
serial: 2026021226
refresh: 1440
retry: 3600
expire: 2592000
minimum-ttl: 600

Servidor de Correo
host: opckursk.ru
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.opckursk.ru

Información TXT
host: opckursk.ru
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx ip4:91.240.210.19 +a:mail.opckursk.ru ~all
entries: Array