Servidores DNS Principal (mname) y Secundario (rname)
host: fhwa.dot.gov
class: IN
ttl: 387
type: SOA
mname: edns1.dot.gov
rname: hostmaster.dot.gov
serial: 2008151408
refresh: 3600
retry: 1200
expire: 2419200
minimum-ttl: 300

Servidor de Correo
host: fhwa.dot.gov
class: IN
ttl: 387
type: MX
pri: 1
target: fhwa-dot-gov.mail.protection.outlook.com

Información TXT
host: fhwa.dot.gov
class: IN
ttl: 387
type: TXT
txt: v=spf1 include:_ip4SPF.dot.gov include:_ip6SPF.dot.gov include:_O365SPF.dot.gov ~all
entries: Array