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Outlook 2013: Removing duplicate email messages RRS feed

  • Question

  • Is there any method by which duplicate email messages in Outlook 2013 can be removed without a third party commercial software?

    I had to combined various old pst files - that's how I ended up with duplicates.

    Thanks!

    Monday, May 13, 2013 9:21 PM

Answers

  • There is a way that does not involve using a add-on or program.

    The best way to do this takes seconds, is free, and already a part of Outlook.

    All you need to do is click on the folder that has the duplicates in it and then go up to the 'Home' tab and click "Clean up". Then click the "Clean Up Conversations" options. It will remove all the redundant (duplicated emails) in the highlighted folder.

    That's it. Depending on the size of the folder it can take a couple minutes at the most. I had a 10 gb folder take about 5-10 minutes.

    Hope this helps you and anyone else that is having this issue.

    Friday, February 24, 2017 2:18 AM
  • In my lab, the function is running well. If it runs unexpectedly in your Outlook 2013, you would still use some another mothod to remove the duplicate items in your PST file.

    Filter and remove by Outlook feature : http://support.microsoft.com/kb/299349

    Or install free add-ins provided by Microsoft solution:

    http://www.office-addins.com/-outlook-addins/duplicate-email-remover.php

    Thanks.

    Cheers,
    Tony Chen
    Forum Support
    ________________________________________
    Come back and mark the replies as answers if they help and unmark them if they provide no help.
    If you have any feedback on our support, please contact tnmff@microsoft.com.

    • Marked as answer by JSS2020 Friday, May 17, 2013 3:37 AM
    Thursday, May 16, 2013 9:42 AM

All replies

  • When you import/combine a PST file into your profile, you can choose "Do not import duplcates".

    Tony Chen
    TechNet Community Support


    Wednesday, May 15, 2013 6:08 AM
  • Thanks! Just one clarification. If the file to be imported already has duplicates within it then would only one copy of that message be imported? BTW, in previous versions of Outlook ODIR used to work well for removing duplicates but it does not seem to work in Outlook 2013.
    Wednesday, May 15, 2013 6:35 PM
  • In my lab, the function is running well. If it runs unexpectedly in your Outlook 2013, you would still use some another mothod to remove the duplicate items in your PST file.

    Filter and remove by Outlook feature : http://support.microsoft.com/kb/299349

    Or install free add-ins provided by Microsoft solution:

    http://www.office-addins.com/-outlook-addins/duplicate-email-remover.php

    Thanks.

    Cheers,
    Tony Chen
    Forum Support
    ________________________________________
    Come back and mark the replies as answers if they help and unmark them if they provide no help.
    If you have any feedback on our support, please contact tnmff@microsoft.com.

    • Marked as answer by JSS2020 Friday, May 17, 2013 3:37 AM
    Thursday, May 16, 2013 9:42 AM
  • Thank you so much for your help. I appreciate it.
    Friday, May 17, 2013 3:38 AM
  • Don't you think that it would be fair to mention that 'free add-ins' are only trial versions and are 'free' for only 30 days? It would be nice if Microsoft would provide this tool truly free.
    Tuesday, December 10, 2013 2:57 PM
  • I downloaded ODIR too and it didn't install (threw an error during the install). The Filter and remove option also does not work for Outlook 2013. The instructions do not exist for 2013. The instructions for prior versions of Outlook are not applicable.
    Monday, January 13, 2014 9:04 PM
  • You can make use of this third party tool http://www.duplicateemailremover.net to remove all duplicate items in MS Outlook instantly. The tool is also supported by all versions of MS Outlook and compatible with all windows.
    Monday, March 31, 2014 7:39 AM
  • There is a free Remove Duplicate Messages tool that does exactly what you want. It is a third-party software, but it's free.

    Alexey Kuznetsov,
    Relief Software
    More than 100 free add-ins for Outlook


    Friday, October 3, 2014 6:34 PM
  • That only helps if you do this BEFORE the import.
    Tuesday, November 15, 2016 8:27 PM
  • That's because the product doesn't support 2013.
    Tuesday, November 15, 2016 9:25 PM
  • There is a way that does not involve using a add-on or program.

    The best way to do this takes seconds, is free, and already a part of Outlook.

    All you need to do is click on the folder that has the duplicates in it and then go up to the 'Home' tab and click "Clean up". Then click the "Clean Up Conversations" options. It will remove all the redundant (duplicated emails) in the highlighted folder.

    That's it. Depending on the size of the folder it can take a couple minutes at the most. I had a 10 gb folder take about 5-10 minutes.

    Hope this helps you and anyone else that is having this issue.

    Friday, February 24, 2017 2:18 AM
  • Clean up Conversations appears to be only available in Outlook 2016, not in 2013 or below.
    Friday, September 1, 2017 10:18 PM
  • Is there any method by which duplicate email messages in Outlook 2013 can be removed without a third party commercial software?

    I had to combined various old pst files - that's how I ended up with duplicates.

    Thanks!

    Hello,

    Please try this link and remove duplicate messages from Outlook.

    https://gallery.technet.microsoft.com/office/Outlook-Duplicate-Remover-5be9e35d

    Regards,

    Bruce


    • Proposed as answer by BruceA10 Monday, November 13, 2017 9:02 AM
    Monday, November 13, 2017 9:02 AM