Dears

Recently I have deployed 4 node exchange environment and the details as below;

Exchange 2013 CU7 on Windows 2012 R2

2 CAS Role Servers with NLB

2 Mailbox Role Server with DAG.

No Smart Host used on the Send Connector

No Edge Server deployed.

In order to simplify the firewall rules and force the outbound e-mail flow through the CAS server I have enabled the "Proxy through Client Access Server" . on the send connector.

But when I test it the mail flow it shows the mailbox IP.

Can anybody help me on this?

Best regards

Muralee

• Edited by Muraleee 10 minutes ago Added more details.

Hi Muralee,

What is the test you are running, internal - internal or internal-external etc.

Please note that the email will always flow via a mailbox server as it is having the hub transport components. The FrontEnd Trasnport will only come into play once you are sending\receiving email out to\from the external domain\internet.