I have a user who wants to know who (other than himself) read a couple of messages in his GW account. He logged on to GW Client on a Saturday morning and noticed a couple of his messages that were sent to him that morning had already been opened (message was no longer in bold character). User wants to know who might have been reading his messages. Is there a way to trace/find/retrieve that information (ie. IP address, user name, if it was opened via GW client or Web Access or mobile device, etc)?

I'd appreciate any information that can be provided.