Until you turn on deleted-item retention, you can't recover items you delete from a public folder after you delete them. When you've enabled the feature, you can recover deleted items from that point forward. However, deleted-item retention works differently for public folders than it does for mailboxes. Instead of the items going to the mailbox's Deleted Items folder (as mailbox items usually do), Exchange marks items deleted from the public IS as deleted and hidden. To recover an item, you still right-click its parent folder to access the Recover Deleted Items command, but you must have Editor permissions (or equivalent) on the folder. In addition, you must turn on item recovery for the public IS of the server that hosts the public folder replica you're using and not just on one of the replica servers. ----------------------------------------------------------------------------- What happens to items in a mailbox's Deleted Items folder when you move that mailbox to another server? Research by Exchange mailing list (http://www.swynk.com/sysapps/ exchange.asp) reader John Matteson shows that moving a mailbox with Exchange Administrator's Tools, Move Mailbox command flushes the mailbox's Deleted Items folder so that you can no longer recover deleted messages. ----------------------------------------------------------------------------- How can I tell whether a mailbox or public folder rule will execute on the client or on the server? This question is difficult to answer because you can use many different rule conditions and special cases further complicate the matter. In addition, several new Outlook 2000 features muddy the waters even more. To find out whether a particular rule is client- or server-based, check Sue Mosher's list at http://www.slipstick.com/rules/serverbased.htm. ----------------------------------------------------------------------------- What tools are available that can automatically produce a document describing my Exchange Server configuration? I know of two such tools. The first one is a free download from Microsoft's Web site (http://www.microsoft.com/exchange/55/downloads/exmap.htm) that uses ActiveX Data Objects (ADO) to read an Exchange organization's directory ADO and turn it into a Visio 5.0 diagram showing sites, servers, and connectors. That's all it does, but it's free and it includes source code, so you can customize it to meet your needs. ----------------------------------------------------------------------------- Because permissions in your Public Folder infrastructure are so important, back them up regularly. Microsoft provides you with a tool that allows you to find and export your permissions list for your Public Folder infrastructure. Located on the Exchange 2000 Server Resource Kit, this tool is known as the Public Folder Administration Tool. To run it, locate and run PFADMIN.EXE. This tool has many functions, such as providing you with a list of every Public Folder and the Public Folder store where it is replicated. It also lets you see the owner, group, and accounts that have rights (including the permission levels) for each Public Folder. You should know this information and export it in case of a catastrophic failure that leaves you without Public Folder permissions information. Because Public Folders can often be the lifeblood of the business units and their ability to do their jobs in a company, retaining this information and being able to access and restore it quickly is essential. ----------------------------------------------------------------------------- If you want to turn off the memory configuration check, you can create the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem Parameter: Suppress Memory Configuration Notification Type: REG_DWORD Setting: 1 Note For Exchange Server computers that do not contain any mailboxes or public folders (such as mail gateways), we do not recommend setting the /3GB switch in boot.ini, independently of installed physical memory size. Note For Exchange Server computers which are at the same time Active Directory Domain Controllers or Global Catalog servers we do also not recommend setting the /3GB switch in boot.ini. We recommend having dedicated Active Directory Domain Controllers or Global Catalog servers.