CA Process does not like admins with local mailfiles
Ran into this one the other day while making a small change to my CA based certifiers:
Cannot locate user certificate. Make sure server contains your certificate for encryption
Turs out that when your location document is configured with your mail file location as Local, you will not be able to make any changes to notes and/or internet certifiers inside the CA Process.
See also KB #1168945
Why it requires the location of the mailfile to be 'On Server' instead of just checking the home server as configured in the location document (or the server you're actually administrating) is beyond me though.