Servidor de Correo
host: uptcer.co.cu
class: IN
ttl: 2000
type: MX
pri: 0
target: newwark.uptcer.co.cu

Información TXT
host: uptcer.co.cu
class: IN
ttl: 2000
type: TXT
txt: v=spf1 mx ip4:200.55.134.75 -all
entries: Array