Servidores DNS Principal (mname) y Secundario (rname)
host: procarcare.com
class: IN
ttl: 900
type: SOA
mname: mem-dnsmaster-1.autozone.com
rname: postmaster.no.email.please
serial: 576102599
refresh: 3600
retry: 600
expire: 2592000
minimum-ttl: 3600

Servidor de Correo
host: procarcare.com
class: IN
ttl: 900
type: MX
pri: 5
target: smtp.autozone.com