

This could very well result in data duplication. When you incorrectly configure rules in the Settings folder of your Outlook application, there is lack of synchronization between the folders in your PST file.However, looking out for the following list of reasons can help you keep a tab on them: The possibilities for duplicate accumulation in PST could be many, and you might not be able to stop all of them. Why duplicates accumulate in PST files?īefore going on to the solutions, let’s get to the root of the problem. So what should you as a user do to remove duplicates from Outlook and help out the PST file? Let’s find out. Over time, your PST file may become corrupt and you might lose all your important emails and attachments. This not only consumes extra disk space but also affects the overall performance of your Microsoft Outlook application.


When there are duplicates in your Microsoft Outlook PST file, it means that email messages are getting copied and accumulating in it. A lot of things can go wrong if your PST file maxes out: loss of emails and attachments, Microsoft Outlook crashes, inability to send and receive email messages, and worst of all, loss of data.

Your Microsoft Outlook PST file is not only the most important file but also the one that runs out of capacity quickly. Remove duplicate Emails in Outlook PST is an important step towards keeping its size in check.
