Advanced Techniques: Free Gateway Setup with Smarter Mail

Smarter Mail is a robust mail system capable of performing multiple roles on a single server, including serving as a gateway server.

a) How do I configure Smarter Mail as an incoming gateway?

1. First, log into Smarter Mail as an administrator.

2. Then, click on the Settings icon.

3. After that, click on Gateway or Failover in the navigation pane.

4. Next, click the “Incoming” tab.

5. Then, click New.

6. After that, select Domain Forwarding from the Gateway Mode drop-down list in the Options card.

7. Next, enter the IP address or IP range in the IP address settings.

8. Then, verify that the status is set to enabled.

9. After that, type the domain information in the appropriate fields on the domain card.

10. To use Smarter Mail as a gateway to another Smarter Mail server, you must perform the following steps:

• The Smarter Mail gateway card should be enabled to enable the Smarter Mail Gateway Mode switch.
• To log in to your primary mail server, input the Smarter Mail URL, username, and password in the appropriate fields.

11. Next, click Save.

12. Then, click Bindings in the navigation pane.

13. Afterwards, the IP Addresses tab will be displayed by default, and the list of IP addresses will be loaded.

14. Next, click on the desired IP address and add a checkmark next to SMTP.

15. Then, click Save.

16. Finally, change the domain’s MX records to reference the new gateway server in DNS.

b) How do I configure Smarter Mail as an outgoing gateway?

1. First, log into Smarter Mail as an administrator.

2. Then, click the Settings icon.

3. After that, click on Gateway or Failover in the navigation pane.

4. Next, the Outgoing tab will appear by default.

5. After that, click New.

6. Then, enter the IP address of the outbound gateway and SMTP authentication information, if applicable.

7. Next, click Save.

8. After that, follow these steps to add your primary mail server’s IP address to SMTP’s IP whitelist:

1. First, click “Security” on the navigation page.
2. Then, click the Whitelist tab.
3. After that, click New in the content pane toolbar.
4. Next, enter the IP address or IP range in the appropriate field.
5. Then, select the SMTP switch.
6.  Finally, click Save.

9. Finally, enable gateway mode in the general settings of the main mail server by setting the IP address of the gateway server.

Note: The settings for your primary mail server, Smarter Mail, can be found in Settings > Gateways/Failover > Outgoing Gateway.

Note: To ensure all outgoing emails are routed through the gateway, modify the domain’s inbound mail delivery settings. If the domain’s MX records point to a Smarter Mail server, change the inbound mail delivery to “External (use host address)” and specify the gateway. When marked as externally hosted, emails between domain users are not considered local delivery.