Removing Duplicate Items from a Mailbox

NOTICE: The TechNet gallery will be retired in June, 2020. For future updates to these script, please visit my GitHub profile at Here you can also watch for updates, report bugs or ask questions, or contribute yourself. Official announcemen

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Verified on the following platforms
Windows 10 No
Windows Server 2012 Yes
Windows Server 2012 R2 Yes
Windows Server 2008 R2 Yes
Windows Server 2008 Yes
Windows Server 2003 No
Windows Server 2016 Yes
Windows 8 No
Windows 7 No
Windows Vista No
Windows XP No
Windows 2000 No
This script is tested on these platforms by the author. It is likely to work on other platforms as well. If you try it and find that it works on another platform, please add a note to the script discussion to let others know.