Views:
The graymail filter uses the configured gateway IP addresses to check the reputation of the sender's IP address and identify graymail messages.
To configure Inbound Gateway IP addresses:
  1. From the left menu, click Configuration → Server Settings.
  2. Double-click the settings of the target server and choose Edit.
  3. Click the Inbound Gateway IP Addresses tab.
    inbound-gateway-ip.png
  4. Add all the inbound gateway IP addresses of your organization into the gateway IP address list.
    Note
    Note
    Add all of the inbound gateway IP addresses used in the organization to the list. If a gateway IP address is not added to the list, ScanMail may consider inbound email messages from that IP address as spam.
  5. (Optional) Select Notify the administrator of unknown gateway IP addresses. Configure the following:
    1. In the Subject field, specify the notification email subject.
    2. In the Content field, specify the notification email content.
    3. In the Interval field, specify the notification interval.
    Note
    Note
    If all of the following conditions are met, ScanMail sends notifications to the administrator email addresses predefined on the Notification tab page:
    • Graymail detection is enabled in at least one rule of the active policy.
    • The Notify the administrator of unknown gateway IP addresses check box is selected in target server settings.
    • Any unknown gateway IP address is found during the specified interval.
  6. Click Save & Close.