Saludos a todos tengo un problema, en mi empresa tengo una entidad la cual se me esta conectando externamente y debe recibir correo y navegación, el problema es que no logro crear un registro mx que lo atienda a el digámosle asi

Mi dominio es ensap.cu para lo cual mi mx para mi empresa seria MX ensap.cu cuya ip es 172.15.2.2, ahora el segundo MX seria import.ensap.cu cuya ip es 172.16.21.2.

Mi pregunta es como logro conformar el dns para cuando me consulten el mx import.ensap.cu responda dicha ip.

También e creado un relay para que gestione ambos correo pero cuando pongo en la otra empresa relay.ensap.cu no me llegan los mensajes y da un error de conexión…

ALGUNA IDEA..

Esto es lo que me pasa cuando estoy en plena produccion.

Explico

172.16.21.2 ip salida wan dominio import.ensap.cu


Tue 2019-01-22 12:07:13: Parsing message <d:\mdaemon\queues\remote\pd35000103515.msg>
Tue 2019-01-22 12:07:13: * From: richardssanchez@import.ensap.cu
Tue 2019-01-22 12:07:13: * To: test@ensal.cu
Tue 2019-01-22 12:07:13: * Subject: Ahora si silvio 22-01-2019 12.00
Tue 2019-01-22 12:07:13: * Size (bytes): 2078
Tue 2019-01-22 12:07:13: * Message-ID: <WC20190122170710.430005@import.ensap.cu>
Tue 2019-01-22 12:07:13: Attempting SMTP connection to [relay.ensap.cu]
Tue 2019-01-22 12:07:13: Resolving MX records for [relay.ensap.cu] (DNS Server: 10.16.2.8)...
Tue 2019-01-22 12:07:13: * P=010 S=000 D=relay.ensap.cu TTL=(60) MX=[mail.ensap.cu]
Tue 2019-01-22 12:07:13: Attempting SMTP connection to [mail.ensap.cu:25]
Tue 2019-01-22 12:07:13: Resolving A record for [mail.ensap.cu] (DNS Server: 10.16.2.8)...
Tue 2019-01-22 12:07:13: * D=mail.ensap.cu TTL=(60) A=[172.16.21.2]
Tue 2019-01-22 12:07:13: Attempting SMTP connection to [172.16.21.2:25]
Tue 2019-01-22 12:07:13: Waiting for socket connection...
Tue 2019-01-22 12:07:13: * Connection established (172.16.21.2:11123 -> 172.16.21.2:25)
Tue 2019-01-22 12:07:13: Waiting for protocol to start...
Tue 2019-01-22 12:07:13: <-- 220 import.ensap.cu ESMTP MDaemon 11.0.0; Tue, 22 Jan 2019 12:07:13 -0500
Tue 2019-01-22 12:07:13: --> EHLO import.ensap.cu
Tue 2019-01-22 12:07:13: <-- 250-import.ensap.cu Hello import.ensap.cu, pleased to meet you
Tue 2019-01-22 12:07:13: <-- 250-ETRN
Tue 2019-01-22 12:07:13: <-- 250-AUTH=LOGIN
Tue 2019-01-22 12:07:13: <-- 250-AUTH LOGIN CRAM-MD5
Tue 2019-01-22 12:07:13: <-- 250-8BITMIME
Tue 2019-01-22 12:07:13: <-- 250 SIZE
Tue 2019-01-22 12:07:13: --> MAIL From:<richardssanchez@import.ensap.cu> SIZE=2078
Tue 2019-01-22 12:07:13: <-- 250 <richardssanchez@import.ensap.cu>, Sender ok
Tue 2019-01-22 12:07:13: --> RCPT To:<test@ensal.cu>
Tue 2019-01-22 12:07:13: <-- 250 <test@ensal.cu>, Recipient ok
Tue 2019-01-22 12:07:13: --> DATA
Tue 2019-01-22 12:07:13: <-- 354 Enter mail, end with <CRLF>.<CRLF>
Tue 2019-01-22 12:07:13: Sending <d:\mdaemon\queues\remote\pd35000103515.msg> to [172.16.21.2]
Tue 2019-01-22 12:07:13: Transfer Complete
Tue 2019-01-22 12:07:13: <-- 250 Ok, message saved <Message-ID: WC20190122170710.430005@import.ensap.cu>
Tue 2019-01-22 12:07:13: --> QUIT
Tue 2019-01-22 12:07:13: <-- 221 See ya in cyberspace
Tue 2019-01-22 12:07:13: SMTP session successful (Bytes in/out: 477/2211)

Ya aqui en esta otra me cambia la conexion e intenta conextarse por otra via y me da este error...


Tue 2019-01-22 12:07:13: ----------
Tue 2019-01-22 12:07:18: Parsing message <d:\mdaemon\queues\remote\pd50000103516.msg>
Tue 2019-01-22 12:07:18: * From: richardssanchez@import.ensap.cu
Tue 2019-01-22 12:07:18: * To: test@ensal.cu
Tue 2019-01-22 12:07:18: * Subject: Ahora si silvio 22-01-2019 12.00
Tue 2019-01-22 12:07:18: * Size (bytes): 2435
Tue 2019-01-22 12:07:18: * Message-ID: <WC20190122170710.430005@import.ensap.cu>
Tue 2019-01-22 12:07:18: Attempting SMTP connection to [relay.ensap.cu]
Tue 2019-01-22 12:07:18: Resolving MX records for [relay.ensap.cu] (DNS Server: 10.16.2.8)...
Tue 2019-01-22 12:07:18: * P=010 S=000 D=relay.ensap.cu TTL=(60) MX=[mail.ensap.cu]
Tue 2019-01-22 12:07:18: Attempting SMTP connection to [mail.ensap.cu:25]
Tue 2019-01-22 12:07:18: Resolving A record for [mail.ensap.cu] (DNS Server: 10.16.2.8)...
Tue 2019-01-22 12:07:18: * D=mail.ensap.cu TTL=(60) A=[172.15.2.2]
Tue 2019-01-22 12:07:18: Attempting SMTP connection to [172.15.2.2:25]
Tue 2019-01-22 12:07:18: * 172.15.2.2 in connection failure cache for up to 5 minutes due to previous connection failure(s)
Tue 2019-01-22 12:07:18: Attempting to send message to smart host
Tue 2019-01-22 12:07:18: Attempting SMTP connection to [relay.ensap.cu:25]
Tue 2019-01-22 12:07:18: Resolving A record for [relay.ensap.cu] (DNS Server: 10.16.2.8)...
Tue 2019-01-22 12:07:18: * D=relay.ensap.cu TTL=(60) A=[172.15.2.2]
Tue 2019-01-22 12:07:18: Attempting SMTP connection to [172.15.2.2:25]
Tue 2019-01-22 12:07:18: * 172.15.2.2 in connection failure cache for up to 5 minutes due to previous connection failure(s)
Tue 2019-01-22 12:07:18: This message is 0 minutes old; it has 60 minutes left in this queue
Tue 2019-01-22 12:07:18: SMTP session terminated (Bytes in/out: 0/0)
Tue 2019-01-22 12:07:18: ----------