An Email gateway can be added to a selected domain by using the following procedure;
Using the Management Console, Navigate to "Configuration | Gateways", then click on the button "CREATE";

A new window will now open titled "Message Gateway – New";

At the prompt "Type:", select "EMAIL", enter a suitable name and description for the email gateway, and select what domains will be able to use the message gateway;
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The section headed "Configuration" can be used to configure the connection configuration details for the gateway you intend to connect to.
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The section headed "Test" can be used to check that the connection parameters are working prior to saving the template;.
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