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Sending external email from the FR-Ex

Posted on 2011-09-13
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Last Modified: 2012-05-12
We have two exchange servers, the first one is the frontend and the other one is the backend server, and we are using a connector to manage the sending to external domains.

The frontend server is located in the DMZ.

The frontend receiving the emails normally, but the problem is when the emails sending out from our domain are sent from the backend server.

I need to configure my servers to send external emails from the frontend not from the backend server.
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Question by:Y-IT
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y4utech earned 125 total points
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To route all mail through a dedicated SMTP relay server. Usually it is a SMTP front-end in the same Exchange organization, but it could be some proprietary "black-box" with anti-spam/anti-virus filtering as well. Let it be EXSMTP01 server in our case.
There are two ways of setting up a mail routing:

1. Define the EXSMTP01 server as a smart host on all exchange servers:
    a) Open ESM->First Administrative group->Servers->BackEnd01->Protocols->SMTP
    b) Open properties of 'Default SMTP server'
    c) Press 'Advanced' on the 'Delivery tab'
    d) Enter an IP address (in square brackets) or FQDN of the EXSMTP01 server in the 'Smart host' field.
    e) Repeat for all exchange servers you want to route through the smart host.

2. Setup an Internet connector for the current routing group:
    a) Ensure that all exchange server you wish to setup routing for are located in the same routing group (check ESM->First Administrative group->Routing groups)
    b) Create a new SMTP connector for the routing group (ESM->First Administrative group->Routing groups->Group->Connectors) and specify EXSMTP01 as a local bridgehead server. On the 'Address space' tab define an SMTP address '*' with some cost (good default value is 50).

If you need any further assistance than please let me know.


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by:Y-IT
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Thank you it is working will now.

I use the Internet connector for the routing group solution.
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