Exchange 2013 - Proxy through client access server not working

Hello All -

I recently migrated our company to Exchange 2013 and noticed that our email was leaving through the mailbox server. I put a check mark in the Send Connector where it says "Proxy through Client Access Server" and my mail is still coming from the mailbox server. How can I go about fixing this problem?

Environment:

1 CAS Server
1 Mailbox Server

Both server are behind the firewall with only port 25 opened to the CAS. The CAS has a Send Connector to a smart host for all messages.

Thank you!

Ryan


May 11th, 2013 8:23pm

Hi

Do you have previouse versions or edge server ?

If you have edge server, it will bypass exchange 2013 CAS server.

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May 13th, 2013 8:04am

Hi Wendy,

It was a migration from 2010. There was no Edge Server .

May 13th, 2013 9:23pm

Hi,

Please check if the outbound messages without smart host are coming from CAS . 

I doubt it send to the smart host directly if you configure smart host, and not use proxy thogh CAS.

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May 20th, 2013 3:34am

Hi Ryan

I know it is a very old thread  But I  am having exactly the same issue and could you share the steps you followed to solve this issue.

My Thread:- https://social.technet.microsoft.com/Forums/en-US/07337ee8-50d4-45e0-a9ae-ad83e0069a92/proxy-through-client-access-server-is-not-working?forum=exchangesvrsecuremessaging

Best regards

Muralee

March 23rd, 2015 3:16am

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