Hi, one of our users is receiving 10-30 undeliverable email messages that we have no idea of their origin. They come in bursts. Windows Live messenger was removed from the machine and they seemed to have stopped for a few days but have since resumed. The user has a Blackberry with the Desktop Redirector and of course is receiving the them on the Blackberry, also. Any ideas on how to troubleshoot the source of these undeliveralbe spams that have no origination with the user. Thank you, Greg.