How to Remove Duplicate Emails in Outlook for Free? Complete Method

Jamie Kaler ~ September 26, 2024 ~ 11 Minutes Reading

Do you also have duplicate emails in your Outlook account that you want to remove for free? You don’t even know how to manage duplicate emails in your Outlook account and you are looking for a solution that can delete duplicate emails from your Outlook account. If we are right, then you have come to the right blog post, here you will be provided with the best solution to remove duplicate emails in Outlook for free. With the help of this, you can easily remove duplicate items from Outlook account without spending a single penny.

As we all know, Microsoft Outlook is the most widely used email client by personal and professional users. It allows Outlook users to sync their data across devices, with the help of which any user can access their Outlook account from any device. Most of the duplicates occur due to syncing because when a user receives an email from one of his devices, due to syncing it appears on all devices, then a duplicate copy is created. So today we have come up with this article, here you will be provided with the best way to remove duplicate emails in Outlook for free.

Tips and Tricks to Prevent Duplicates in Outlook Accounts

Users may want to delete duplicate items in their Outlook account for several reasons. Here are some common reasons why users want to remove duplicate emails in Outlook for free:

  • Save Storage Space: Duplicate items take up unnecessary space in the mailbox, which can lead to storage issues. Deleting duplicate items can help save storage space and prevent the mailbox from reaching its storage limit.
  • Improve Performance: Duplicate items can slow down the performance of Outlook. Removing duplicate items can improve the overall performance of the Outlook email client and make it faster and more efficient.
  • Reduce Confusion: Duplicate items can create confusion and make it difficult to manage emails. It can be hard to know which version of an email is the latest, leading to miscommunication and errors. Removing duplicate items can make it easier to manage emails and reduce confusion.
  • Maintain Data Integrity: Duplicate items can cause data integrity issues, which can lead to data corruption and loss. Removing duplicate items can help maintain data integrity and prevent data loss.
  • Compliance and Legal Requirements: Some companies and organizations have compliance and legal requirements to maintain accurate and complete records of their email correspondence. Deleting duplicate items can help ensure compliance with these requirements.

Best Way to Remove Duplicate Emails in Outlook Free

In this article, you will be provided with two solutions to remove duplicate emails in Outlook for free, with the help of which you will be able to easily remove duplicate items. The first method is automated in which we will learn how to delete duplicate emails in Outlook and the other methods is manual to eliminate duplicate emails from Outlook for free. Let us now know the step-by-step process of these two methods.

Method 1: Remove Duplicate Items in Outlook Using Professional Tool

A professional tool is also available to delete repeated emails from Outlook for free called Jagware Outlook Duplicate Remover Software. The software comes with a demo version for free to delete 25 of your Outlook duplicate items. With the help of this free Outlook duplicate remover software, you can easily delete duplicate emails, contacts, calendars, tasks, notes, etc. items from your Outlook account without disturbing the original items. This software comes with advanced features, in which you are provided with multiple filter options to make your work even easier.

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Outstanding Features of Using Automated Solution

  • You can easily delete duplicate emails from Outlook within a folder or across folders as required.
  • This software is completely user-friendly and can be used by all types of users, from beginners to professionals.
  • It also offers multiple advanced filters that are helpful for easily deleting duplicate emails based on date range, subject, sender, excluded folder, organizer, root folder, excluded empty folder, and more as needed.
  • With this wizard, you can eliminate duplicate emails from specific folders in Outlook.
  • This software can automatically detect the Outlook profile folder, saving you the effort of finding the path to the Outlook folder.

Method 1. How to Use Free Outlook Duplicate Remover Software?

  1. Firstly, download, install, and launch this Free Outlook Duplicate Email Remover Tool on your Windows platform
    free outlook duplicate remover
  2. After that, browse the outlook pst file with the help of the Select folder or Select File option
    add outlook mailbox
  3. Thereafter, select the Outlook mailbox folder as per your requirements and then click the Next button
    select folder
  4. Now, choose the destination path and then select the Duplicate Removal option
    duplicate removal method
  5. Finally, click the Extract button, and then Outlook duplicate remover software will start the process automatically
    live process
  6. Now, you can see the resultant file on your destination path
    remove duplicate emails in outlook free

Recommend Reading: Best MBOX Duplicate Remover Tool

Method 2: How to Remove Duplicate Emails from Outlook Using the Clean-Up Tool

If you want to remove duplicates from Outlook, you can use the Outlook inbuilt clean-up feature to delete repetitive emails by following these steps:

  1. Launch the “Microsoft Outlook” application and select a “Mailbox folder”.
  2. Click on the “Home” tab, then press the “Clean Up” button.
  3. Select the “Clean Up Folder”, Subfolder, or Conversation option as per your requirements.
  4. Right-click on the “Deleted Items Folder” and select “Empty Folder” to permanently delete emails from Outlook.

Method 3: How to Eliminate Duplicate Emails from Outlook Using the Import/Export Wizard

If you have exported a PST file and want to insert it into Microsoft Outlook without creating duplicate emails, you can use Outlook’s inbuilt Import/Export Wizard:

  1. Launch “Microsoft Outlook” and go to the “File” menu.
  2. Click on “Open & Export”, then hit “Import/Export”.
  3. Select “Import from Another Program or File” and click “Next” to continue.
  4. Select “Outlook Data File (PST)”, then click “Next”.
  5. Browse and select the “PST File” you want to import.
  6. Choose the “Mailbox Folder” where you wish to import the data and click the “Finish” button to begin the process.

Method 4: How to Delete Duplicate Emails from Outlook via Account Settings

This manual approach focuses on email synchronization settings, which can sometimes lead to duplicate emails, though it doesn’t automatically remove them. You can use Outlook’s built-in features to delete duplicates:

  1. Open “Outlook” on your PC, then click on the “File” tab.
  2. Select “Account Settings”, then choose Account Settings again from the drop-down menu.
  3. A list of email accounts configured in Outlook will appear. Select the “Email Account” with duplicate emails.
  4. Click the “Change” button to modify the settings for the selected account.

Method 5: Proper Setup to Remove Duplicate Emails in Outlook

If you are using a POP3 account, duplicate emails can occur if the delivery settings are not configured correctly. Follow these steps:

  1. Click on “More Settings” and navigate to the “Advanced Tab”.
  2. Under the Delivery option, ensure that “Leave a copy of the message on the server” is either unchecked or set to remove messages from the server after a certain number of days.

Method 6: How to Configure the Inbox Update Frequency

To avoid frequent downloads and duplicate emails, follow these steps:

  1. Run “Microsoft Outlook” and go to the “Send/Receive” option.
  2. In Send/Receive Groups, define the “Send/Receive” settings.
  3. In the dialogue box, select the “Groups” you want to change.
  4. Tap the “New” button to create new groups if needed.
  5. Click the “Edit” button and schedule an “Automatic Send/Receive” for a suitable time interval.
  6. Select the “Desired Time Interval” and press “OK”.

Method 7: Disable the Antivirus Application

Duplicate emails in Outlook may occur due to issues with your antivirus application settings. If the connection is not closed properly, emails may be flagged as received and generate duplicates. To avoid this:

  1. Access your “Antivirus Software” and “Disable” the Email Protection or Email Scanning feature.
  2. This should Prevent Outlook from “Generating Duplicate Emails” due to connection problems.

Method 8: Using Free Way to Delete Duplicate from MS Outlook

  1. First, “open Microsoft Outlook” on your computer.
    open outlook
  2. To find duplicate emails, “sort your emails by subject”, and click on the “View” tab, then choose “Change View >> View Settings.”
    view settings
  3. After that, automatically open the “Advanced View Settings” window, and click on the “Sort” button.
    click sort
  4. And then, Select the sort order in the drop-down menu as per shown screenshots and then click on “OK” to save your changes.
    sort order
  5. After sorting your emails by subject, you should be able to identify duplicate emails. Look for emails with the same subject line and sender in the same date range.
  6. Select one by one of the duplicate emails by clicking on it. Press and hold the “CTRL” key on your keyboard and select the other duplicate emails. Once you have selected all the duplicate emails, right-click on them and select “Delete.”
    select duplicate emails
  7. Once you have deleted the duplicate emails, you need to empty the Deleted Items folder to permanently remove them from your account. Right-click on the Deleted Items folder and select “Empty Folder.”
    deleted item folder
  8. Finally, a dialog box will appear, asking if you want to permanently delete the selected items. Click “Yes” to confirm.
    remove duplicate emails in outlook for free

By following these steps, you can manually remove duplicate emails in Outlook account. While this method can be effective, it may not be suitable for large amounts of duplicate emails and these manual approach have lots of another challenges that we have explained in the upcoming section.

Why Professional Always Skip Manual Approaches?
  • To remove duplicate emails from Outlook can be a time-consuming process using clean-up or adjusting account settings will consume a lot of time especially if you have multiple email accounts.
  • It is required to follow several steps which can be too slow for larger data files.
  • Inbuilt Clean-Up tool utility misses some duplicate emails, especially if the duplicate emails are too large, such as variations in time stamps or email headers.
  • It requires the users to manually adjust account settings, run tools, and check folders which may not be feasible for those working with limited levels of technical skills.
  • None of the manual methods offer a complete guarantee to remove all duplicate emails.
  • Duplicate emails are only addressed after they occur which means users need to repeat the process again and again.
Let’s Wind Up

In this article, you learned how to remove duplicate emails in Outlook for free without disturbing the original content. In this article, we have told about two methods, the first is the manual method, which will not cost you even a single penny. And the second method is Automatic Free Outlook Duplicate Remover Software, with the help of which you can delete duplicate items from your entire Outlook mailbox in one go.

Frequently Asked Questions By Users

Why am I Suddenly Getting Duplicate Emails in Outlook?
Sudden duplicate emails in Outlook may occur due to incorrect account settings, multiple email clients accessing the same account, or synchronization issues.


Can you Check for Duplicates in Outlook?
Yes, you can check for duplicates in Outlook by using the Clean-Up tool, searching for specific criteria, or employing automated software as it specially designed for this purpose.


How do I Get Rid of repeat emails?
To get rid of repeat emails in Outlook, use the Clean-Up tool, adjust account settings, or employ third-party software specifically designed to remove duplicates.


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