When we compose an email using mapi (From Windows 7 Pro) a copy of that email is not sent to the Sent Items folder in Outlook 2010. We have an Exchange 2010 Server/ Windows Server 2008 R2. This worked automatically before we had to rebuild the PC -(OS-W7Pro) that what using Outlook 2010, and did the OS updates and Office updates. However, emails that are sent from Outlook 2010 do make it into the sent Items folder. I also notice that when sending these mapi emails outside of Outlook 2010 - When these emails are sent they go to the Outlook (Outbox folder) and sit there for 3-5 minutes before they actualy get sent to the Exchange 2010 Server.
Any help is very much appreciated.