Hello, I am using the New-MailboxImportRequest to import .PST files into existing mailboxes. These mailboxes have emails in them that are also included in the .PST file being imported. The import request completes successfully, some needing the BadItemLimit to be set. After importing the .PST file, I am noticing that duplicates have been created for emails and contacts. From this site, https://docs.microsoft.com/en-us/powershell/module/exchange/new-mailboximportrequest?view=exchange-ps I understand that duplicates are not imported. This is an example of the PowerShell command used: New-MailboxImportRequest -FilePath "\\ServerName\FolderLocation\UserName.pst" -BadItemLimit 10 -Mailbox "UserName"
This is an on premiss Exchange 2016 server.
So, to my questions, How do I stop the duplicates from being imported? And How do I remove the duplicates for those already imported?

