Registro DMARC
"v=DMARC1;p=reject;pct=80;rua=mailto:support@sechenov.ru;sp=reject;aspf=s;adkim=s;ri=604800;"

Registro IPv4
host: mma.ru
class: IN
ttl: 3600
type: A
ip: 178.185.223.96

Servidores DNS Principal (mname) y Secundario (rname)
host: mma.ru
class: IN
ttl: 3600
type: SOA
mname: ns3-l2.nic.ru
rname: dns.nic.ru
serial: 2024062521
refresh: 1440
retry: 3600
expire: 2592000
minimum-ttl: 600

Servidor de Correo
host: mma.ru
class: IN
ttl: 3600
type: MX
pri: 30
target: mail.sechenov.ru

Información TXT
host: mma.ru
class: IN
ttl: 3600
type: TXT
txt: "google-site-verification=jWW31iOSqwYNmkPWYBJBrnbE_x7OiO3idUMb7JQ7BV8"
entries: Array

Información TXT
host: mma.ru
class: IN
ttl: 3600
type: TXT
txt:  v=spf1 a a:mail.sechenov.ru ip4:195.178.196.40/32 ip4:195.178.202.157/32 include:_spf.mail.ru -all
entries: Array