> But when you reassemble the sender-msg-id in your reply() > implementation you try to undo that step: > > $msg_id = "msg-id:" . $msg_id; > > and if the original didn't start with "msg-id:" then the msg-id that > you pass back to the client using receiveResponse() will have the > wrong value. Oops! You're right. Sorry. I'll fix that. Al.