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TomChmurzynski-2249 avatar image
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TomChmurzynski-2249 asked CHudlet-1869 commented

Outlook 2016 is resending emails after pst import

I set up a user on new computer. Exported her email which was pop3 on outlook 2007 on the old computer. On the new computer I set up outlook 2016 as imap. I imported the pst file from outlook 2007. Now all her emails are doubled and worse of all they are being re-sent to everyone! How can I stop this?

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Hi @TomChmurzynski-2249,
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.

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Hey Tom, did you ever find an answer to this? I just imported an old PST to Outlook 2016 and now getting reports back that it is resending out old email. Nothing recorded in the sent items, just vendors and clients confused by getting email years old with today's date.

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1 Answer

JeffYang-MSFT avatar image
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JeffYang-MSFT answered JeffYang-MSFT edited

Hi @TomChmurzynski-2249,

Welcome!

How is your issue going now? As I know, incorrectly importing Outlook PST files might indeed cause issues like duplicate mailbox items, but usually will not lead to re-sent issue. So, if the re-sent issue still continues, I would suggest you to temporarily remove this IMAP account from your Outlook 2016 and see if we could stop the re-sent behavior.

Then, have you set your Mail Settings (File > Account Settings > Account settings) to cache all the mails before importing?
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And have you chosen the Replace Duplicates option when importing PST file?
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As I know, have not caching all the mailbox items to local client would indeed cause issues like duplicate items when importing. So, in order to solve your issue, please try the steps below and see if it could help:

  1. Log in to your web mail and manually remove the duplicate items.

  2. Create and use a new Outlook profile via Control Panel > Mail > Show profile to re-add your IMAP account.

  3. Modify mail settings to cache all your mails.

  4. Restart your Outlook and wait for the auto-sync to end.

  5. Re-import your PST files using Replace Duplicates option.

Note: Before operations, please make sure you have back up all your data in advance to avoid loss.

Hope this can be helpful.


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