Registro DMARC
v=DMARC1; p=reject; rua=mailto:rua@dmarc.microsoft;ruf=mailto:ruf@dmarc.microsoft;fo=1:s:d

Registro IPv4
host: microsof.com
class: IN
ttl: 3320
type: A
ip: 20.70.246.20

Registro IPv4
host: microsof.com
class: IN
ttl: 3320
type: A
ip: 20.231.239.246

Registro IPv4
host: microsof.com
class: IN
ttl: 3320
type: A
ip: 20.76.201.171

Registro IPv4
host: microsof.com
class: IN
ttl: 3320
type: A
ip: 20.236.44.162

Registro IPv4
host: microsof.com
class: IN
ttl: 3320
type: A
ip: 20.112.250.133

Servidores DNS Principal (mname) y Secundario (rname)
host: microsof.com
class: IN
ttl: 3600
type: SOA
mname: ns1-07.azure-dns.com
rname: azuredns-hostmaster.microsoft.com
serial: 1
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 300