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How to Delete Duplicate Emails in Thunderbird Mail Folders?

Are you looking for an automated method to find and delete email duplicates within Thunderbird Mail folders? If you are also stuck in this situation then you will find its solution in this article. Here we will show you “How to Delete Duplicate Emails in Thunderbird Mail Folders?”. Let’s start…

Thunderbird is a free and open-source email client offered by the Mozilla Foundation. It enables users to manage their email accounts from their desktop. It stores users’ email profile data locally including emails, contacts, calendars and other data items.

The common problem of email duplication sometimes arises when using Thunderbird. There can be many reasons behind duplicate emails. These duplicates may cause performance and some other problems in Thunderbird in the future.

As a result, it becomes necessary for users to manage their Thunderbird mail folders by removing duplicates.

Also Read: – How to Delete Duplicate Emails from MBOX Files?

Causes of email duplicate occurrence in Thunderbird: –

There can be various reasons for the presence of duplicates in Thunderbird mail folders, some of them can be: –

  • Email Client and Server Syncing Issues: – Mail server syncing issues may cause email clients to download the same email multiple times. This may result in duplicate emails.
  • Accent access on multiple devices: – Using the same email account with multiple email clients or devices can also be a reason for email duplication.
  • Network Issues: – Thunderbird may have trouble downloading emails properly due to an unstable network connection or interruption. In that case, Thunderbird may try to download multiple times which may be a reason for de-duplication.

Automatic Method to Delete Duplicate Emails from Thunderbird


It is now possible to automatically find and remove duplicates from Thunderbird profile email folders. Users can do it with the most powerful and secure solution called SysInspire Thunderbird Email Duplicate Remover software.

This automated software gives you the power to find duplicate emails from different Thunderbird Mail folders and delete them in bulk at once. It provides many smart options for easy searching and performing deletion easily.

How to Delete Duplicate Emails in Thunderbird Mail Folders? Easy Steps

  • Download and Run eSoftTools Thunderbird Duplicate Remover Software.
  • Click the Add File/Folder button and choose a mode of importing Thunderbird mail folders.
    • Auto-Load Thunderbird Profile: – select this option to load all Thunderbird profile mail folders at once.
    • Select MBOX File: – Manually add one Thunderbird MBOX, MSF email file.
    • Select MBOX Folder: – Add a folder containing Thunderbird email files manually (single or multiple).
  • With selected mode insert the Thunderbird mail folder/files and click on Next.
  • Load mail folders into the software view their inner emails and check duplicates.
  • Select folders containing duplicates and press the Remove Duplicates button.
  • Apply the required de-duplication settings in the newly opened screen: –
    • Email Search options: – Select the email properties by which you want to search for duplicates. Among the options – TO, CC, Subject, Sender, Attachments and Message Body.
    • Search email duplicate from the folder with any one of these options: –
      • Search & Delete within MBOX file: – find and delete emails within each folder one after another.
      • Search & Delete across all folders: – for the deletion across all the selected folders.
    • Email Filtering: – Select the date range from which you want to de-duplicate emails.
    • Saving Location: – Choose any one of the options “Save in Thunderbird” or the “Manual Saving location Selection”.
  • Click on the Remove Duplicates button and start the de-duplicate based on your applied settings.

Conclusion

Email duplicates can cause many problems in the Thunderbird email client. Deleting email duplicates is essential for the smooth functioning of Thunderbird and emailing without any difficulties. The above-given method is the fastest and most accurate technique to execute Thunderbird email de-duplication. Try it now to get the best results.

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