How to Create a List of Exceptions to Connection Filtering Rules
You can specify whether specific SMTP addresses in your organization are allowed to receive messages from blocked IP addresses. This procedure outlines how to create a list of exceptions to connection filtering rules.
Procedure
To create a list of exceptions to connection filtering rules
On the Connection Filtering tab (see the following figure) of the Message Delivery Properties dialog box, click Exception.
Connection Filtering tab in the Message Delivery Properties dialog box
For More Information
For more information about connection filtering and how it works, see "Connection Filtering" in What's New in Exchange Server 2003.