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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;
Section Column width 30% 
Column width 70% Expand title Type Panel borderColor grey bgColor #F8F8F8 borderStyle dashed For email gateways select "EMAIL".
Expand title Name Panel borderColor grey bgColor #F8F8F8 borderStyle dashed Enter a suitable name for your email gateway (e.g. “Dualshield Email Gateway”).
Expand title Description Panel borderColor grey bgColor #F8F8F8 borderStyle dashed Provide a brief description of email provider (e.g. "Company Email Server").
Expand title Configuration Panel borderColor grey bgColor #F8F8F8 borderStyle dashed The Edit button (
) allows you to provide additional configuration details for the Email Gateway (for instructions see the next step below).Expand title Domains Panel borderColor grey bgColor #F8F8F8 borderStyle dashed Select the Domains from which the user details can be obtained (e.g. "deepnetsupport.com").
Expand title Enabled Panel borderColor grey bgColor #F8F8F8 borderStyle dashed Select if the message gateway is enabled (or not).
After you have completed entering the gateway details you will be ready to configure the gateway.
Click on the Edit button (
) , and a new window titled "SMTP Gateway" will open;Section Column width 30% 
Column width 70% Expand title Server URL Panel borderColor grey bgColor #F8F8F8 borderStyle dashed Enter the address of your SMTP Server (in this example our mail server is at “mail.deepnetsecurity.com”),
Expand title Port Panel borderColor grey bgColor #F8F8F8 borderStyle dashed Unless your provider requires a different setting, leave the setting unchanged with the default value of 25,
Expand title Transport Layer Security (TLS) Panel borderColor grey bgColor #F8F8F8 borderStyle dashed Enter a TLS setting that matches the requirements of your SMTP mail server
Expand title Secure Socket Layer (SSL) Panel borderColor grey bgColor #F8F8F8 borderStyle dashed Enter a SSL setting that matches the requirements of your SMTP mail server
Expand title Username Panel borderColor grey bgColor #F8F8F8 borderStyle dashed If your mail server requires a user name, then enter it here.
Expand title Password Panel borderColor grey bgColor #F8F8F8 borderStyle dashed If your mail server requires a password, then enter it here.
- You will now return to the window titled "Message Gateway – New", supply any description you may required then click "Save" to create the email gateway.
Once the email gateway has been configured it can be tested by using the context menu option "Test";
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