How Do I Mass Delete Duplicate Emails in Outlook?

    In this article, we’ll go through how do I mass delete duplicate emails in Outlook, including email messages, contacts, tasks, and other objects. Additionally, the best method for deleting duplicate emails from Outlook was mentioned. Most significantly, we describe CubexSoft Outlook Duplicate Remover, a tried-and-true method for getting rid of duplicate emails.

    The organization and businesses cannot function without email. All work equipment is carried out. Microsoft Outlook is the most secure and reliable email client for discussing a business or organization. It provides a high level of safety and has an appealing user interface.

    Even Microsoft Outlook has too many helpful functions, yet because of a glitch, issues start to show up in your PST files. Duplicate emails are a major issue. Duplicate emails, however, cause a lot of confusion between newer and older emails, causing B. to wonder which emails are responded to and which are not.

    Why Is It Important to Get Rid of Duplicate Emails in Outlook?

    • Confusion over responses and unanswered emails may result from duplicate emails.
    • It needlessly expands Outlook.
    • To store more data, you need more space, which increases the cost of storage.

    How Do I Mass Manually Delete Duplicate Emails From Outlook?

    Additionally, Outlook includes a feature known as the Clean Up Tool that allows users to eliminate duplicate emails from their inboxes. You must adhere to the guidelines as explained below:

    1. Choose a mailbox folder in Outlook once it is open.
    2. Next, select “Home” before selecting “Cleanup”.
    3. Duplicate emails are deleted and eliminated by Clean Up Conversation from a certain folder.
    4. Duplicate emails from a certain folder are removed using the cleanup folder.
    5. Duplicate folders and subfolders are eliminated by selecting “Clean Folder and Subfolders”.
    6. You can select any of them based on your comfort.

    To permanently remove duplicate emails from Outlook, right-click on the removed data and tap the empty folder.

    Why should users avoid manual techniques at all costs?

    • It is a pretty difficult process that consumes a lot of important time.
    • Users need to be highly technical to manage this process.
    • Additionally, the notice “No messages were cleared. The Trash will only contain messages that fit your cleanup preference.
    • It is difficult to estimate the precise quantity of duplicate emails with this technique.

    How to Remove Duplicate Emails from Outlook Using CubexSoft PST Duplicate Remover?

    As you can see, using a manual method is not a wise decision. As a result, we advise selecting CubexSoft Outlook Duplicate Remover. It is a great option because the application is made specifically to discover and quickly eliminate identical emails. This software has all the necessary cutting-edge algorithms to produce accurate results without losing data.

    1. Install the software on your computer and launch it.
    2. Open the PST file in the software window by browsing it.
    3. Choose the mailbox folder where the duplicate data should be removed.
    4. Then decide on the PST file size and language of choice.
    5. Setting the location for the result data and pressing, “Remove” to receive a rapid output is the last step.

    Advanced Advantages of Using Professional Software

    • This method can also be used to split PST files into the desired sizes of 2GB, 4GB, 10GB, and 20GB.
    • In order to simplify and ease the process, it is also feasible to create a distinct PST file for each account.
    • Both novice and expert users will find this software to be quite simple to utilize.
    • It gives you complete freedom to select the storage location that will provide you with the output files you need.
    • The original file is unaffected by this software.

    Important Note: Do you want to convert Outlook data files? If yes is your answer, then you should try CubexSoft Outlook Converter Tool to directly export Outlook data files to multiple file formats such as PDF, MBOX, EML, MSG, DOC, RTF, Office 365, Gmail,, Thunderbird, Zimbra, Exchange Server, etc.


    We have described how do I mass delete duplicate emails in Outlook in this helpful guide. Users will find it difficult to eliminate duplicate emails in Microsoft Outlook. We have covered the walkthrough method to combine and delete duplicate emails in Outlook to make things simpler. We have covered both manual and expert alternative solutions in this post. You can erase duplicate emails by selecting a solution that best suits your needs.

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    Andra Bank
    Andra Bank
    Andra Bank is the founder of VR Bonkers, a premier Content marketing Agency. Andra her become a trusted voice in the industry, Her background encompasses key roles across various agencies, contributing to the content strategies of major brands like TravelRoach & Studio On IOTA. her expertise spans SEO, conversion rate optimisation, and effective content strategies.

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