How to add a new domain/customer for outbound email?

How to add a new domain/customer for outbound email? - F-Secure Community

This article describes how you can add a new domain/customer for outbound email.

Outbound mail setting specifies which hosts can send email through the system. To add a new domain/customer for outbound email:

Settings are located under System > Outbound Mail > Allow Relay:

Note: Allow relay only to your internal mail servers.