Registro IPv4
host: mail.emailsrvr.com
class: IN
ttl: 1255
type: A
ip: 173.203.187.14

Registro CNAME (Alias)
host: webmail.alzen.com.mx
class: IN
ttl: 4
type: CNAME
target: mail.alzen.com.mx

Servidor de Correo
host: mail.emailsrvr.com
class: IN
ttl: 18678
type: MX
pri: 20
target: mx2.emailsrvr.com

Servidor de Correo
host: mail.emailsrvr.com
class: IN
ttl: 18678
type: MX
pri: 10
target: mx1.emailsrvr.com

Registro CNAME (Alias)
host: webmail.alzen.com.mx
class: IN
ttl: 4
type: CNAME
target: mail.alzen.com.mx