dear all, i faced a problem using exchange server 2010, shared folder security was changed by mistake, where can i have a list of appropriate security permissions for these folders (exchangeOAB, Groupmetrics, Address) thank you in advanced. regards bahaa

You can run the Dsacls command on other good exchange server and compare the permission settings. How to Use Dsacls.exe in Windows http://support.microsoft.com/kb/281146 Thanks, Simon