First grant permission to the admin account Add-MailboxPermission -Identity “John Doe” -User compsquareadmin -AccessRights FullAccess Export message to pst file Export-Mailbox -Identity “John Doe” -PSTFolderPath C:UserscompsquareadminDesktopjohn_doe_export.pst Note: export to pst file require 32bit operating system Perform the deletion Export-Mailbox -Identity “John Doe” -StartDate “01/01/2015” -EndDate “12/31/2017″ -DeleteContent”
Backup your registry Open up the registry editor regedit Navigate to HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\setup Add a DWORD (32-bit) Value key Call it DisableOffice365SimplifiedAccountCreation Change its value to 1 close the registry editor and restart your computer
In Outlook 2013 or 2016 on a PC, choose File. If your ribbon doesn’t have a File option in the top left corner, you’re not using Outlook 2016 or 2013. See What version of Outlook do I have? to get to the export instructions for your version of Outlook. Choose Open & Export > Import/Export. Choose Export to a file. Choose Comma Separated Values. THIS …