Registro DMARC
v=DMARC1; p=quarantine

Registro IPv4
host: mc21.ru
class: IN
ttl: 38856
type: A
ip: 178.248.237.157

Servidores DNS Principal (mname) y Secundario (rname)
host: mc21.ru
class: IN
ttl: 38855
type: SOA
mname: ns1.reg.ru
rname: hostmaster.ns1.reg.ru
serial: 1791374231
refresh: 14400
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: mc21.ru
class: IN
ttl: 38856
type: MX
pri: 10
target: mx.mc21.ru

Información TXT
host: mc21.ru
class: IN
ttl: 38856
type: TXT
txt: v=spf1 ip4:109.167.251.5 ip4:109.167.251.7 ip4:109.167.251.50 include:spf.unisender.com -all
entries: Array

Información TXT
host: mc21.ru
class: IN
ttl: 38856
type: TXT
txt: spf2.0/mfrom,pra ip4:109.167.251.5 ip4:109.167.251.7 ip4:109.167.251.50 include:senderid.unisender.com -all
entries: Array

Información TXT
host: mc21.ru
class: IN
ttl: 38856
type: TXT
txt: MS=A3468B6D347824696F790401775E1B3927EAB54F
entries: Array