i m not sure what error do you get but i cud see my errors on RL .
here is what was wrong with my environment.
we had exchange on server 2 and the RL was installed on the DC. for this
config to work you need 3 things
1) install exchange management tools ( requires IIS common files). once
these are installed you can disable IIS services
2) allow the account which is being used to run RL to run as local account
on exchange server.
3) run RL with account which has domain privileges and exchange admin
rights on exchange system.
somehow this is not very clear in documentation.
hope this helps.