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## Preparing Exchange Server 2013/2016 for Mixed Exchange Environments

Exchange Server 2013/2016 requires that the SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9} mailbox exists on the Exchange server before starting a search in a mixed Exchange environment. If the mailbox does not exist on Exchange Server 2013/2016, configure the mailbox using Exchange Management Shell Commands.

### Procedure

1. Execute the command:`Get-Mailbox -Arbitration`
   Retrieves the current system mailbox information
2. Execute the command: `Get-Mailbox -Arbitration "SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}" | New-MoveRequest -Targetdatabase "Exchange2013/2016 DB Name"`
   Moves the SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9} mailbox to the Exchange Server 2013/2016 mailbox database
3. Execute the command: `Get-MoveRequest`
   Checks the status of the move operation

   | ##### Note The move operation may take few minutes to complete.