In Prinergy Diagnostics, the message Error: Could not access 'CDO.Message' object.' appears.
McAfee VirusScan software prevents AutomationApp.exe from accessing port 25, which causes RBA to fail.
Solution:
Configure the VirusScan software to allow AutomationApp.exe to use port 25 to send outbound e-mail.
For instructions, see the VirusScan documentation.