I'm trying to find a log or record of mail sent to nonexistant addresses at my site - i.e. mail sent to xxx@mysite.com.If I look in Programs-> Microsoft Exchange-> System Manger-> Tools-> Message Tracking CenterI only find successful mail. How do I find mail sent to bogus addresses? I'm trying to figure out if a service is actually sending us email, but to the wrong address, or not sending at allThanks

You need to view the protocol log. In Exchange 2007 this is enabled on the receive connector. In earlier versions of exchange it's controlled from the smtp virtual server.