Servidores DNS Principal (mname) y Secundario (rname)
host: covenant.biz
class: IN
ttl: 3600
type: SOA
mname: ns67.domaincontrol.com
rname: dns.jomax.net
serial: 2020102805
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 600

Servidor de Correo
host: covenant.biz
class: IN
ttl: 3600
type: MX
pri: 5
target: mx-02-us-east-2.prod.hydra.sophos.com

Servidor de Correo
host: covenant.biz
class: IN
ttl: 3600
type: MX
pri: 0
target: mx-01-us-east-2.prod.hydra.sophos.com