You'll need to edit the Default Domain Controllers Policy in Group Policy.

1. Computer Configuration
2. Windows Settings
3. Security Settings
4. User Rights Assignment
5. Mange auditing and security log

Add "Exchange Servers" or "Exchange Enterprise Servers" to that policy.

gpupdate /force on the domain controller and restart the Exchange Services

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1. Start the Microsoft Management Console (MMC) Exchange System Management (ESM) snap-in (Start, Programs, Microsoft Exchange, System Manager).
2. In the treeview pane, navigate to Administrative Groups, &ltadministrative group name>, Servers.
3. Right-click the server and select Properties.
4. Select the Directory Access tab.
5. From the Show drop-down list, select Global Catalog Servers.
6. Clear the "Automatically discover servers" check box.
7. Click Yes in the confirmation box.
8. Click Add.
9. Enter the name of the GC to use.
10. Click OK.

Microsoft recommends that you don't manually set the GC that Exchange Server uses; therefore, you should manually set the GC only when it's absolutely necessary.

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Works for Exchange 2000 and 2003 and Windows XP, probably works for the rest as well.

First off, annoyingly we need to install Internet Information Services (IIS).

1. Control Panel,
2. Add Remove Windows Components,
3. Select Internet Information Services (IIS),
4. Select Details,
5. Make sure World Wide Web Service is checked.
6. OK, Next, Finish.

Find your Exchange installation CD

1. Open the SETUP folder.
2. Open the i386 folder.
3. Run Setup
4. Next
5. Select Microsoft Exchange System Management Tools
6. Next, Next, Next, Finish.

Job done. You can now manage Exchange user attributes from your own desktop and be the envy of your IT Support buddies,

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You can use Mailbox Manager to create a recipient policy to automatically delete all messages from users Deleted Items folder, at an interval you specify.To create a policy to delete forwarded messages

1. Open Exchange System Manager in the Exchange organization in which the journaling mailbox resides.
2. Expand the Recipients folder.
3. Right-click the Recipient Policies folder, point to New, and then click Recipient Policy.
4. In the New Policy dialog box, select Mailbox Manager Settings, and then click OK.
5. In the Properties dialog box, on the General tab, do the following:
   a. In the Name box, enter a policy name.
   b. Under Filter rules, click Modify.
6. In the Find Exchange Recipients box, create a search query that will return all your users or certain users/mail boxes you want affected.
7. When you finish building the query, click OK.
8. In the message that appears, click OK.
9. Click the Mailbox Manager Settings (Policy) tab, and then do the following:
   a. In the When processing a mailbox drop-down menu, select Delete Immediately.
   b. In the Folder list, clear all folders except the Deleted Items folder.
   c. Select Deleted Items, and then click Edit.
   d. In the Folder Retention Settings dialog box, specify the criteria by which you want Exchange Server to
   delete the messages. You can specify a number of days or the total size of the deleted messages. For
   example:
10. Click OK.
11. Click OK to close the Properties dialog box and return to the main Exchange System Manager window.
12. In the pane on the left, open the Recipient Policies folder to list all the policies.
13. In the pane of the left, right-click the policy that you just created, and then click
    Apply this policy now > Yes.
    Now that you’ve created a policy, you must schedule when the policy will run.

To schedule Mailbox Manager to run policies

1. Open Exchange System Manager and locate the server that is hosting mailarchive.
2. Right-click the server, and then click Properties.
3. In the server Properties dialog box, click the Mailbox Management tab.
4. In the Start mailbox management process drop-down list, select a schedule appropriate for your
5. organization. For example, "Run Sunday at Midnight".
   Enable reporting if you wish, you can select None, email the system administrator or email affected users.
6. Click OK.

Done!

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Microsoft Exchange Server journalling lets you record a copy of, or journal, all email communications in your
organisation and send them to a dedicated mailbox on an Exchange Server.

Some notes before we start;

• If you are using Exchange Server Standard Edition, you must have at least two of these servers on your
  network. You must reserve one of your servers for receiving journaled messages only. This reserved server
  cannot contain any user mailboxes.
• You must turn on journaling for individual mailbox stores on Exchange Server.
  You cannot turn on journaling for your entire organization at once.

My client has Exchange 2003 which means we can have multiple Storage Groups on the same server. Exchange Standard only allows one, thats why you'd need two servers.

1. Create a new Storage Group and create a new Mailbox Store in that group.
2. Create a new user, something like "Journalling Mailbox" in this new Mailbox Store. Its probably a good idea to "Hide from Exchange address lists".
3. Find the user you've just created and select Exchange General > Delivery Restrictions > Only From and put in the user you've just created.
4. Now we need to enable envelope journalling on the original mailbox store where all your users are.
5. Part 1 - Enable envelope journalling for your Exchange Server environment, using the exejcfg.exe (Email Journaling
   Advanced Configuration) tool. Just run exejcfg.exe -e to enable it.
6. Part 2 - In Exchange System Manager, Expand Administrative Groups > [administrative group] > Servers > [your Exchange server] > [storage group with existing mail boxes for users]. Right-click the mailbox store for which you want to turn on journalling, and choose Properties.
7. On the General tab, select Archive all messages sent or received by mailboxes on this store, and
   then click Browse.

All done.

If you want to delete messages after a period of time, see my other post - Cleaning up Deleted Items Automatically from Exchange

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