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Delete Duplicate Emails in Outlook 2010

    Question

  • Software: Outlook 2010

    Email: Microsoft Exchange account

    System: Windows 7 Home, 64-bit

    I upgraded from Outlook 2007 to a computer with 2010. When starting Outlook after configuring the Mail settings, I expected it to download all my items in all subfolders (it did this after a fresh reinstall of windows on my old computer). Some items were downloaded, many in subfolders of my email were not. I need ALL my mail searchable at once, and this was not happening without me going through each subfolder and waiting for it to complete reconciling/updating.

    Using the import feature, I opened a PST from my old computer and selected "Do not import duplicates" but ALL emails were duplicated. Now Outlook seems to be having a fun time uploading those duplicates to the server.

    I need a fast way of removing these duplicates without removing the new files Outlook imported. Is there a better way for Exchange Server to update all Folders and subfolders?

    Monday, July 18, 2011 4:24 PM

Answers

  • Well, may be you can use the add-in: Duplicate Email Remover for Microsoft Outlook for help, it can find and delete duplicate e-mails in Outlook.

    Download the Trial version here:

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

    Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. 


    Sincerely,

    Max Meng
    Forum Support


    Come back and mark the replies as answers if they help and unmark them if they provide no help.
    Tuesday, July 26, 2011 5:16 PM
    Moderator

All replies

  • There is a free Remove Duplicate Messages tool for that.
    Alexey Kuznetsov,
    Relief Software
    Wednesday, July 20, 2011 12:53 PM
  • Hi August,

    You can follow these steps to remove the duplicate messages in Outlook 2010:

    1. In Outlook 2010, select the folder for which you want to delete duplicate items.
    2. Click the View tab in the Ribbon, click Change View in the Ribbon, and then click to change the folder view to a table type view. For example, click the List icon.
    3. Right-click a column heading, and then click Field Chooser.
    4. From the list at the top of the Field Chooser, click to select the All <item name> fields .
    5. Drag the Modified field to the table heading.
    6. Verify that the duplicate items have a unique date from the original set of items. If it is unique, click the Modified heading so that the items are sorted by this field.
    7. Click the first item in the set that you want to delete, scroll to the last item in the set that you want to delete, and then click the last item while you hold down the SHIFT key.
    8. Press DELETE to permanently delete all selected items.

    Any questions, feel free to post back.


    Sincerely,

    Max Meng
    Forum Support


    Come back and mark the replies as answers if they help and unmark them if they provide no help.
    Friday, July 22, 2011 6:22 AM
    Moderator
  • Max, how will this work if the items on that motify date were not duplicated? I have noticed that some folders were not duplicated, and doing the search as you suggest shows up all items.

     

    Is there no clever built in feature of Outlook to determine duplicate emails and consolidate them? The clean up feature seems only to retain the latest email of a RE/FW conversation.


    -JDLA, BSME, EIT
    Friday, July 22, 2011 3:37 PM
  • I followed your instructions Max Meng but the duplicates do not have a unique date from the original, they are the same. In this case, what do I need to do?

    Thanks

     

    Tuesday, July 26, 2011 10:40 AM
  • Well, may be you can use the add-in: Duplicate Email Remover for Microsoft Outlook for help, it can find and delete duplicate e-mails in Outlook.

    Download the Trial version here:

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

    Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. 


    Sincerely,

    Max Meng
    Forum Support


    Come back and mark the replies as answers if they help and unmark them if they provide no help.
    Tuesday, July 26, 2011 5:16 PM
    Moderator
  • This add-in is not free. You will need to purchase it, while Remove Duplicate Messages is free.
    Alexey Kuznetsov,
    Relief Software
    Wednesday, July 27, 2011 1:09 PM
  • Unfortunately the Remove dupes removes at a snails pace and the dupes keep on coming back...Any other ideas???

     

    Sunday, December 18, 2011 5:49 AM
  • I tried this product based on this post. Beforehand, I tried 2 free products that kept crashing and had less capabilities. I also tried a few other free trials. This one is so much faster, does not crash on my 15GB PST file, and gives you folder prioritization, which was critical.

    Thanks for suggesting this Outlook 2010 email duplication remover by MAPILab. I really did not want to pay the $24, though. But broke down because I wasted too much time fiddling with the free ones.

     

    Also wish they had included contact and other duplicate deletions for the $24. This version only did email.

     

    John L.


    Saturday, January 07, 2012 6:12 PM
  • Sometimes you can not install any additions to the system.
    I wrote a solution that will eliminate duplicate messages.
    They can implement the same in Outlook VBA Developer by your self.

    Read this article

    Download forms and translate by google or another on your lang

    Regards ;]


    Oskar Shon, Office System MVP

    Press if Helpful

    Saturday, January 07, 2012 7:28 PM
  • Every user profile in Outlook consists of many data items such as email messages, contacts, personal folders, etc. With the increase in size of mailbox database, functional errors start taking place which may be due to the presence of duplicate items within the mailbox. But manually removing the duplicacy is a very time-consuming process. For instant removal, a software called Kernel for Outlook Duplicate Removal which is available at http://www.outlookduplicateremover.org/ can be used. 

    Friday, June 22, 2012 7:13 AM
  • If you want do it by VBA by your self - there is a solution: Export poprzez makro jako metoda na duplikaty wiadomości

    or there another solution: Tworzenie wasnego programu - Lekcja 1. Usunięcie duplikatów


    Oskar Shon, Office System MVP

    Press if Helpful; Answer when a problem solved

    Friday, June 22, 2012 8:47 AM
  • Oskar,

    Yes, except for the fact that none of the articles in either of your posts, nor the script are in english.  That doesn't really help us much. Thanx anyway but I think I'll give one of the other answers a try.

    • Proposed as answer by jrstevenson Saturday, January 12, 2013 8:08 PM
    • Unproposed as answer by jrstevenson Saturday, January 12, 2013 8:08 PM
    Sunday, June 24, 2012 11:51 PM
  • THis linkyou supplied is invalid

    Sunday, June 24, 2012 11:53 PM
  • There is a free Remove Duplicate Messages tool for that.
    Alexey Kuznetsov,
    Relief Software

    Alexey, the software you mentioned have helped to partially remove duplicate messages, but another part in the same folder still remains. The messages not identified by "Remove Duplicate Messages tool" look exactly the same, have the same date, same senders and receivers. I can see that the tool has scanned through the folder with those messages, but for some reason it did not identify them as dupes.

    It would be good to have a choice in the tool's options of which fields must be equal for message to be identified as duplicates. Probably it doesn't see them as dupes due to difference in some insignificant secondary field. 


    Thursday, November 08, 2012 9:21 PM
  • One useful tip for those who accidentally or unwittingly import the same messages twice and may help here.  Open the folder with the duplicate messages. Use Field Chooser to select "Created Date"

    Order the messages by created date.  The messages usually run for several minutes in succession on import and there is normally a gap before the second batch of duplicates.

    Check the messages when listed by subect to get an idea of the created dates of each batch of message duplicates and then look for these under the created date ordered list to delete the unwanted import batches.  Its safe and it is easy.  If you make a mistake they are still in your deleted folder until you delete that!

    Saturday, January 12, 2013 8:11 PM
  • Oskar - przeczytaj swoj artykuł i spróbuj powtórzyćk kroki, które opisałeś bez używania innej Twojej wiedzy.

    Babu - nada - zilcz - nie zrobisz z tym nic uzytecznego. Ale po dodaniu kilku instrukcji dla ludzi nie znających VBA to może bedziesz sławny.

    Tylko dlaczego w Twoich procedurach jest MAPIlabs ikona.

    Tuesday, May 14, 2013 12:57 PM
  • My Outlook is 32-bit, I'm running Win 7 64-bit.  When I run the install for this program, I get the following error:

    Error 2738. Could not run access VBScript run time for custom action .


    Thursday, August 22, 2013 3:34 PM
  • That's an extremely helpful add-in, Max. Thank you!
    Sunday, March 09, 2014 3:49 PM