Resolution
When performing a "Save and Test", the actual test email address will receive the test message. However; ListManager will pick a random email address from the list to emulate the send process. Note that the random email address will not receive the mailing. This process emulates the actual mailing providing a preview of what the mailing should look like.
Additional
To change the behavior to display the real test address:
- Navigate to "Utilities: Administration: Server: Server Settings: Advanced"
- Choose the "Enable Features" tab
- Change the "Use Real Recipient Address When Merging Test Messages" option to "yes."
- Click the "Save" button