To move sent messages to the correct sent items folder in Outlook 2010, 2007, or 2003, you need to enable a registry setting. When the user has Full Access rights to the mailbox, the mailbox is opened in the profile automatically in Outlook 20. However, we recommend delegates use the "old" method of opening the shared mailbox as a secondary account in their profile. While you can open secondary mailboxes Outlook 2010, you can also open the account as a second Exchange account. The user then types that address in the From field (or click the From button and select it from the GAL) when preparing the message. See Deleted items for the registry key.įirst, in the Active Directory, give the user's account send as permission on the accounts he needs to send from. Either way, your default Exchange account will need to have Send as permission and create permission on the Sent items folder. To save items in the Sent folder with the mailbox open as a secondary mailbox, you will either need to use "After sending" rules or a registry hack.
See Save Sent Items in Shared Mailbox using an Exchange Server Cmdletfor more details. However, the Exchange server feature only works if the Outlook DelegateSentItemsStyle registry value is disabled.
Because this new feature is handled by the Exchange server, Outlook can be configured for Online or Cached Exchange Mode. If your mailbox is located on Exchange Server 2010 or newer (including Office 365 Exchange Online), the Exchange administrator can configure similar behavior on the server.