Registro DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:rua@dmarc.microsoft; ruf=mailto:ruf@dmarc.microsoft; fo=1

Registro IPv4
host: office365.com
class: IN
ttl: 2464
type: A
ip: 20.119.0.28

Registro IPv4
host: office365.com
class: IN
ttl: 2464
type: A
ip: 40.112.243.53

Servidores DNS Principal (mname) y Secundario (rname)
host: office365.com
class: IN
ttl: 60
type: SOA
mname: ns1-07.azure-dns.com
rname: msnhst.microsoft.com
serial: 2017971531
refresh: 300
retry: 120
expire: 2419200
minimum-ttl: 60

Información TXT
host: office365.com
class: IN
ttl: 1
type: TXT
txt: v=spf1 include:spf.protection.outlook.com ~all
entries: Array

Información TXT
host: office365.com
class: IN
ttl: 1
type: TXT
txt: _ufamlucd6jp7xslb9wnr85vc03dxyqh
entries: Array

Información TXT
host: office365.com
class: IN
ttl: 1
type: TXT
txt: officeprodes.azurewebsites.net
entries: Array

Información TXT
host: office365.com
class: IN
ttl: 1
type: TXT
txt: google-site-verification=u9PqvuplbTIYlwiMAzJWnRRtHYoAlaTX5GMtRRXqWXA
entries: Array