Setting Up Server-wide Black and White Lists
To block mail from specific domains:
- Go to Home > Mail Server Settings.
- Click the Black List tab.
- Click Add Domain.
- Specify the name of the domain from which you do not want to receive e-mail. For example, 'evilspammers.net'.
- Click OK.
- Repeat steps from 3 to 5 to add as many domains as required.
To allow mail reception from specific domains or networks:
- Go to Home > Mail Server Settings.
- Click the White List tab.
- Click Add Network.
- Specify an IP address or range of IP addresses from which mail must always be accepted.
- Click OK.
- Repeat steps from 3 to 5 to add as many addresses as required.