Procedure

1. Go to Sender Filtering → Approved List.
   The Approved List screen appears.
2. Click Add.
   The Add Approved List Record screen appears.
3. Select the Enable check box.
4. Specify the host domain, IP address, subnet address and mask, or sender address that you would like to add to the Approved List.

   Note By default, the Scheduled resolution check box is selected, which means that IMSVA will periodically resolve the A record or MX record associated with the domain. Domain applies to Email Reputation and IP Profiler, while Sender applies to SMTP Traffic Throttling.

5. Click Save.
   The host appears in the Approved List.