I have an Outlook profile with one exchange account and many more POP's. One of the POP's is the default mail account. Why are all the sent messages still appearing in the sent items of the Exchange account? Shouldn't the sent items appear in the sent items folder of the default mail account or the account that the mail was sent from? Is there some way I can address this for my user?

Apparently one needs to create a rule to do this. Does anyone know another way?

It's because your default Data File is the ost file of your Exchange Account.
For the other POP3 accounts you have separate pst files ?
If you have more pst files for each pop3 account, create rules.

• Marked as answer by William Zhou CHNModerator Tuesday, November 15, 2011 1:35 AM

You could try this reg edit

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Preferences
"DelegateSentItemsStyle"=dword:1