Environment is Exchange 2013 CU2 and Office Outlook 2013 latest patches.
Primary mailbox is the users one, connected in online mode.
I added a shared mailbox as a new mailbox inside this profile. (i did not attach it to the users mailbox)
It is a seperate second exchange mailbox next to the users one.
The user has "Full Access" and "Send-As" rights on this shared mailbox.
Now afer some time the users gets an error when sending emails from that shared mailbox.
The error is 0x8004010F and is mostly related to pst issues and offline/cache-mode.
And suddenly later or maybe after restart of Outlook the messages are sent.
What i had to achieve with this configuration, is that the user is able to send emails from this mailbox and all the processed items have to stay inside the shared mailbox.
"DelegateSentItemsStyle" and "Get-MailboxSentItemsConfiguration" is not part of Outlook or Exchange 2013 anymore as it seems.
Does anyone had this problem before or has any idea how to workaround this?