Fix Outlook send on behalf

DelegateSentItemsStyle Registry Value

To move sent messages to the correct sent items folder in Outlook 2010, 2007, or 2003, you need to enable a registry setting.  (If you have the latest service pack for your version of Outlook, the hofix may be installed.)

Outlook 2013

Open the registry editor and browse to:

HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Preferences
DWORD: DelegateSentItemsStyle
Data Value: 1

Outlook 2010

In Outlook 2010, you need to have SP1 (or greater) installed. Open the registry editor and browse to:

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Preferences
DWORD: DelegateSentItemsStyle
Data Value: 1

Outlook 2007

In Outlook 2007, install the June 30, 2009 hotfix, described in KB article 970944. Then open the registry editor and browse to

HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Preferences
DWORD: DelegateSentItemsStyle
Data Value: 1

Outlook 2003

For Outlook 2003, you need this hotfix package. Once its installed, open the registry editor and browse to

HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Preferences
DWORD: DelegateSentItemsStyle
Data Value: 1
With all versions you will need to close and restart Outlook for the registry change to take effect.
Joomla SEF URLs by Artio