I had an Exchange guru install my 2003 Exchange Server, but now he's gone. He setup Mailbox policies for Limits. If I right click on the Main Mailbox Policy properties and select the limits tab in the right hand window (Policy applied to), all settings are grayed out. If I right click Main Mailbox Policy and select limits in the left hand window, everything is availbale, but if I make a change, I get ldap provider 8007202f Exchange System Manager. I was logged in as the Domain Admin.

Hi Mark, Make sure that your account hasExchange Full Administrator permission. Overview of Exchange administrative role permissions in Exchange 2003 http://support.microsoft.com/kb/823018

The Doamin admin is an Exchange Full Administrator already.

First, please refer to kb 323749 Problems accessing the ntSecurityDescriptor property by using the ADSI LDAP provider http://support.microsoft.com/kb/323749/en-us Then please try to create a new mailbox policy to see whether the account you used have enough right to perform the action. Besides, please check event log to find error event with detail information and post here. Hope it helps. Xiu