Manage Shared Mailboxes in Exchange 2013

Two new attributes have been implemented with CU9 in Exchange 2013  to manage Shared Mailboxes.

  • MessageCopyForSentAsEnabled
  • MessageCopyForSendOnBehalfEnabled

These attributes are not enabled by default, then the default behavior when a user with “Send us” or “Send on Behalf” permissions to a shared mailbox send a message, the Sent Item goes to the User Mailbox and not to the Shared Mailbox.

It means another user with permissions on the Shared Mailbox cannot see the email sent on behalf of the mailbox.The new shared mailbox attributes allow to copy a message on a Shared Mailbox sent by a User Mailbox.

To enable this feature in the way to modify the Shared Mailbox behavior run the following cmdlet:

set-mailbox -id xxx -MessageCopyForSentAsEnabled $True 
set-mailbox -id xxx  -MessageCopyForSendOnBehalfEnabled $True

You may get the following error when you try to enable this feature:

“A parameter cannot be found that matches parameter name ‘MessageCopyForSentAsEnabled’.”

To solve this you can run the setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms command from the CU9 installation media.


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