Configure the size limit for both (.pst) and (.ost) files in Outlook 2010

By default, the maximum file size of .pst and .ost is 50 GB in Outlook 2010, but we can modify this setting by the following registry entries.

Assuming that Windows Server 2008 or above is the domain controller in the production environment.

Prerequisites
Creating an OU which is named People
Move the user accounts in the People OU

1. At the domain controller, log in as Domain Administrator.
2. Launch "Group Policy Management Console". 
3. Expand "Forest > Domains > <Domain Name> ", right-click "People", select "Create a GPO in this domain, and Link it here".
4. Under "Name", type "Outlook Policy".
5. Click "OK".

Figure 1: Outlook Policy

6. Right-click "Outlook Policy", select "Edit".

7. Expand "User Configuration > Preferences > Windows Settings", right-click "Registry", select "New > Registry Item".

8. Still select "HKEY_CURRENT_USER".

9. Next to "Key Path", type "Software\Microsoft\Office\14.0\Outlook\PST".

10. Next to "Value name", type "MaxLargeFileSize".

11. Next to "Value type", select "REG_DWORD".

12. Next to "Value data", type the value you want.

Figure 2: MaxLargeFileSize properties

13. Click "OK".

14. Close "Group Policy Management Editor".

As a result, the policy is applied to all users.

Remark: For non-domain environment, you have to configure the setting by "Registry Editor".

Remark: You may have to create the registry values if it do not exist in "Registry Editor".

Reference:

The file size limits of .pst and .ost files are larger in Outlook 2010 and Outlook 2013

How to configure the size limit for both (.pst) and (.ost) files in Outlook

This posting is provided “AS IS” with no warranties, and confers no rights!

Clear and reset the automatic completion caches in Outlook

Outlook 2010

1.     Open a new email message.

2.     Type the first few characters of the nickname cache entry that you want to remove from the cache.

Figure 1: Suggested name (Outlook 2010)

3.     When the entry appears in the "suggested names" list, move your mouse pointer over the name until it becomes highlighted. (But do not click the name).

4.     When the “X” icon appears next to the highlighted name, click X to remove the name from the list.

Outlook 2007 or 2003

1.     Open a new email message.

2.     Type the first few characters of the nickname cache entry that you want to remove from the cache.

Figure 2: Suggested name (Outlook 2007)

3.     When the entry appears in the "suggested names" list, use the UP and DOWN arrow keys on your keyboard to select the entry, and then press DELETE on your keyboard.

Clear whole Outlook nickname cache for Outlook 2010

1.     In Outlook 2010, click “File”.

Figure 3: File tab

2.     Click “Options”.

3.     At left pane, click “Mail”.

4.     Pull down to “Send messages”.

Figure 4: Send messages session

5.     Click “Empty Auto-Complete List”.

Clear whole Outlook nickname cache for Outlook 2002 to Outlook 2007

Windows 7 or Windows Vista: Use the following steps to reset the whole Outlook nickname cache.

1.     Exit Outlook.

2.     Click Start, and then click Computer.

3.     Click Organize, and then click Folder and search options.

4.     On the View tab, click to enable the Show hidden files, folders, and drives option.

5.     Click OK.

6.     On the Start menu, click All Programs, click Accessories, and then click Run.

7.     In the Run dialog box, type the following command (including the quotation marks), and then click OK:
“C:\ Users\UserName\AppData\Roaming\Microsoft\Outlook”

Note: Username in this path is the name of the currently logged on Windows user.

8.     Right-click the .NK2 file that has name of the profile that you want to reset, and then click Rename.

9.     Rename the file as profilename.bak, and then press ENTER.

10.  Start Outlook.

Windows XP: Use the following steps to reset the whole Outlook nickname cache.

1.     Quit Outlook.

2.     Click Start, and then click Search.

3.     In the Search Companion left-side panel, click All files or folders.

4.     In the All or part of the file name: box, type *.NK2.

5.     In the Look In box, click to select your local hard disk.

6.     Click More advanced options, click to select Search hidden files and folderscheck box.

7.     Click Search.

8.     Right-click the .NK2 file with the name of the profile that you want to reset, and then click Rename.

9.     Rename the file to profilename.bak, and then press ENTER.

10.  Quit Windows Explorer.

11.  Restart Outlook.

Reference:
How to reset the nickname and the automatic completion caches in Outlook

This posting is provided “AS IS” with no warranties, and confers no rights!

A problem occurred while trying to use your mailbox

SYMPTOMS

When users try to log on to Microsoft Office Outlook Web Access in Exchange Server 2010, they receive the following error message:

A problem occurred while you were trying to use your mailbox.

RESOLUTION

1.     At the Exchange Server, enter the following cmdlet:

Set-Mailbox User_Name –ApplyMandatoryProperties

2.     At the Exchange Server, click Start, enter dsa.msc.

3.     On the menu, click View > Advanced Features.

4.     Open the properties of a user who cannot log on to Outlook Web App.

5.     Select Security tab, click Advanced.

6.     Check Include inheritable permissions from this object’s parent.

7.     Click OK twice.

Reference:
User CAnnot Log On to Outlook Web Access Because of Insufficient User Rights

Error message when an Exchange Server 2007 user or an Exchange Server 2010 user tries to log on to OWA

This posting is provided “AS IS” with no warranties, and confers no rights!