Registro IPv4
host: gt.d.sender-sib.com
class: IN
ttl: 900
type: A
ip: 77.32.148.20

Servidores DNS Principal (mname) y Secundario (rname)
host: gt.d.sender-sib.com
class: IN
ttl: 900
type: SOA
mname: ns1.sendinblue.com
rname: hostmaster.sendinblue.com
serial: 2016083001
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 3600

Servidor de Correo
host: gt.d.sender-sib.com
class: IN
ttl: 900
type: MX
pri: 10
target: gt.d.sender-sib.com

Información TXT
host: gt.d.sender-sib.com
class: IN
ttl: 900
type: TXT
txt: v=spf1 include:spf.sendinblue.com mx ~all
entries: Array