Use two sections in the Settings > Email MTA page to configure domains and next-hop IP addresses.
The Current Domain and Next-Hop section of the page lists all defined domains.
The Domain and Next-Hop section of the page is used to add or update the configuration of a domain and next-hop IP addresses, and to enable or disable email for all subdomains of the specified domain.
You can use the following Web UI procedures to manage a domain and next‑hop IP addresses: