Registro DMARC
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Registro IPv4
host: schlumberger.com
class: IN
ttl: 300
type: A
ip: 20.23.79.56

Servidores DNS Principal (mname) y Secundario (rname)
host: schlumberger.com
class: IN
ttl: 21600
type: SOA
mname: dns0.slb.com
rname: hostmaster.slb.com
serial: 335
refresh: 14400
retry: 3600
expire: 2419200
minimum-ttl: 900

Información TXT
host: schlumberger.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 -all
entries: Array

Información TXT
host: schlumberger.com
class: IN
ttl: 21600
type: TXT
txt: _65szu03ycqlod5bog415er2ho5kr96u
entries: Array

Información TXT
host: schlumberger.com
class: IN
ttl: 21600
type: TXT
txt: zoom=4306215
entries: Array

Información TXT
host: schlumberger.com
class: IN
ttl: 21600
type: TXT
txt: dtm-domain-verification=i28zSERAjPOfTt9Tc14sTYaREhHVMHIWdF_UJENxAhw
entries: Array