after patching our XI installation to SP13 I can't access the MessageServlet anymore. Each call to the MessageServlet URL return HTTP error code 403.
I've used the component monitoring and the adapter engine and the SOAP adapter seem to be running fine. Furthermore I executed RSXMB_ACTIVATE_ICF_SERVICES. All services a running but I still cant get excess to the message servlet.
ps.: I also checked the user roles of user XIISUSER and XIAFUSER and both seem to be fine.