Registro DMARC
v=DMARC1; p=reject; rua=mailto:rua@saic.com; ruf=mailto:ruf@saic.com

Registro IPv4
host: bull-inc.net
class: IN
ttl: 3600
type: A
ip: 149.64.184.37

Registro IPv4
host: bull-inc.net
class: IN
ttl: 3600
type: A
ip: 149.64.184.38

Servidores DNS Principal (mname) y Secundario (rname)
host: bull-inc.net
class: IN
ttl: 3600
type: SOA
mname: dns-emastp01.net.saic.com
rname: nic.net.saic.com
serial: 772927856
refresh: 3600
retry: 900
expire: 1209600
minimum-ttl: 3600

Información TXT
host: bull-inc.net
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array