The Delegates settings were not saved correctly. Cannot activate free/busy information

Got this error message today when trying to update some delegates settings:

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Microsoft Office Outlook
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The Delegates settings were not saved correctly. Cannot activate free/busy information.
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OK
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To fix the issue I needed to use MFCMAPI tool. Just follow below instructions and all should work fine:

1. Start the MfcMapi.exe
2. On MFCMAPI x86 Build window, click OK
3. Go to Session > Logon and Display Store Table
4. Choose the user profile (if the computer has more than one)
5. Double-click the Mailbox - username store
6. In the navigation pane, click Root Container.
7. In the details pane, right-click PR_FREEBUSY_ENTRYIDS, click Delete Property, and then click OK.
8. In the navigation pane, expand Root Container, expand Top of Information Store, and then clickInbox.
9. In the details pane, right-click PR_FREEBUSY_ENTRYIDS, click Delete Property, and then click OK.
10. Close MFCMAPI
11. Click Start, click Run, type outlook.exe /cleanfreebusy, and then press ENTER.

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Microsoft Exchange Server MAPI Editor (MFCMAPI)

MFCMAPI is a powerful tool which allows you to access and fix several problems in MAPI stores through a graphical interface.

MFCMAPI download from CodePlex.

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Not able to open restricted permission messages (Rights Management Services - RMS)

Last week I worked on a RMS issue, which I couldn't find a solution. However, a teammate of mine who works with security has sent me some instructions which have solved the problem.

• Start->Run->compmgmt.msc
• Expand Services and Applications
• Click on Services
• Stop “cryptographic server” service on end user machine (keep this windows open).  Right click on the service and select stop.
• Rename c:\winnt\system32\catroot2 directory to c:\winnt\system32\catroot2.old
• Start “cryptographic server” service on end user machine.  Righ click on the service and select start.

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Not able to add/remove delegates - Outlook 2007

Got this error message today, when trying to remove an user from delegates tab.

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Microsoft Office Outlook
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The Delegates settings were not saved correctly.  Cannot activate send-on-behalf-of list.
You do not have sufficient permission to perform this operation on this object.
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OK  
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I've found a solution in a Microsoft KB, which solved the problem quite easily. You just need to add a registry key, so with Outlook closed follow below steps

• Cick Start then Run and next type regedit, press Enter;
• Browse to HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Preferences;
• Click New on the Edit menu and select DWORD Value;
• Type IgnoreSOBError, press Enter. Right click the new key and click Modify;
• In Value Data type 1;
• Close Registry Editor and Reopen Outlook. You should be able to add/remove delegates from now on.

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