Follow these steps to add rules to a blocked list using the Web UI.
To add rules to a blocked list:
In the Web UI, choose Settings > Blocked List.
In the Add By drop-down list, choose the type of rule for the block policy.
A dialog box for the specified rule type displays.
Based on the type of rule, enter the relevant information in the box.
Sender Email Address
Sender Domain
Sender IP Address
To add the rule to the blocked list, click Add.
If the blocked list configuration succeeds, the following message appears:
Close the message.