I have an issue with my exchange 2007 server, where if a person gets a meeting invite and selects send response without editing, the exchange server will seemingly send the accepted message over and over again until I manually delete it from the submission queue on the server. If the person hits edit response before sending, even if they do not change anything, this will not happen. If they press don't send a response, this will not happen.
This happens on outlook 2003 client, outlook 2007 client and OWA
My exchange server is up to date with sp3 rollup 11
It is also a virtual server.
I've tried searching online and have not found an issue like this. I'm not sure where to go from here.