I seem to be a source of spam, but cannot track it down. I have an exchange 2007 server. For the last couple of days, I have been getting a huge number of angry 'remove me' emails to one particular address in my organization, but they believe the emails are coming from nissan motors. I have used mxtoolbox to confirm I am not an open relay and that I am not on any blocklists. When I use Queue Viewer, I don't see anything unusual except that two of my real clients are blocking emails from my mx address due to 'intrusion prevention active' on their software. I have run a complete AV scan of my entire network and nothing turned up. I'm not sure I know how to definitely look to see if the emails are really originating from me, but the replies are definitely coming to me. Any suggestions?
Moved from EE_Bugs, 250 points assigned by Netminder, 5 May 2011