Setting Up Server-wide Black and White Lists

To block mail from specific domains:

  1. Go to Home > Mail Server Settings.
  2. Click the Black List tab.
  3. Click Add Domain.
  4. Specify the name of the domain from which you do not want to receive e-mail. For example, 'evilspammers.net'.
  5. Click OK.
  6. Repeat steps from 3 to 5 to add as many domains as required.

To allow mail reception from specific domains or networks:

  1. Go to Home > Mail Server Settings.
  2. Click the White List tab.
  3. Click Add Network.
  4. Specify an IP address or range of IP addresses from which mail must always be accepted.
  5. Click OK.
  6. Repeat steps from 3 to 5 to add as many addresses as required.