[SyncEvolution] ActiveSync debugging server?

I am trying to work out why activesyncd is not working with a particular Microsoft server, although other clients work. The problem is a 403 rejection on the first command (with no attempt at provisioning). I would like to see what the working clients put in their messages to compare. Unfortunately, the server uses SSL so I can't just capture the traffic with wireshark. Does anyone have a simple ActiveSync server simulator or tester? I would like to configure a working client to talk to a simulator and see if I can hack up enough of a dialog to see how the clients handle the initial exchange. I already know that they start the dialogue with an OPTIONS message, and expect a reply. If not, I will craft something myself but I thought I would check if anyone has already done anything like this. Alternatively, anyone implemented an ActiveSync proxy so I can proxy the server and log the messages? Graham