Symantec 10490452 Administration Guide - Page 95

Configuring email filtering 95 Managing Email Firewall policies 3 Accept the defaults or modify the values under Attack Configuration: Minimum percentage of ... Percentage of bad recipient, spam, or virus messages from a single server that must be exceeded to trigger the specified action. The minimum number must also be exceeded. Minimum number of ... Number of bad recipient, spam, or virus messages from a single server that must be exceeded to trigger the specified action. The minimum percentage must also be exceeded. Qualification time window Time period in which the specified percentage and number of bad recipient, spam, or virus messages violations must be exceeded to trigger the specified action. Penalty box time Period of time to perform the specified action against all messages from the sending SMTP connection. 4 Under Actions, accept the default, recommended action of Defer SMTP Connection, or change and/or add more actions. 5 Click Save. Configuring sender groups Filtering based on the source of the message, whether it's the sender's domain, email address or mail server IP connection, can be a powerful way to fine-tune filtering at your site. Note: This section describes global Blocked and Allowed Senders Lists, which are applied at the server level for your organization. Two other options are available to give users the ability to maintain individual Blocked and Allowed Senders Lists. You can enable personal Allowed and Blocked Senders Lists on the End Users tab of the Edit Group page. See "Enabling and disabling end user settings" on page 79. Alternatively, you can deploy the Symantec Outlook Spam Plug-in. With the Symantec Outlook Spam Plug-in, users can easily create personal lists of blocked and allowed senders from within their Outlook mail client. The Plug-in imports information from the Outlook address book to populate the personal Allowed Senders List. See "Installing the Symantec Outlook Spam Plug-in" on page 210.