When I tried to access the "public folder " from Exchange system manager (SBS small business version), the system manager got no respond at all. I could not expand the public folder at all and have to close it from task manager by end "mmc.exe". However, the normal users can access the public folder from their outlooks. There was no error information that could be found in Event Viewer also. I tried to disable the SSL service for Exadmin, Exchange directories, but it could not work.