How to Remove Duplicate Emails from Google Takeout Mailboxes?

  

Rollins Duke   
Published: August 5th, 2025 • 6 Min Read

Overview: In this blog, we will explain how to Remove Duplicate Emails from Google Takeout Mailbox. The guide will follow 2 precise methods to resolve this problem. This blog post will showcase the entire process of deleting duplicate emails in Google Takeout mailbox files. So, the question of “how to remove duplicate emails from Google Takeout?” will never bother you again.

The problem of duplication has been there from the beginning of the computing age, and it still continues to this day. The problem can be a challenge to solve, especially in emails and their backups. So, to resolve such problems, a professional Google Takeout duplicates remover tool can be a great help when deleting duplicate emails in Google Takeout mailbox files with large amounts of data.

Although a single duplicated email message doesn’t consume too many resources like storage but if we talk about large volumes either in email clients or locally backups, the entire duplicated data can be resource-intensive and cause problems like storage management, searching the specific files, and organizing problems.

Why is it necessary to remove duplicate emails from the mailbox and backups?

Heavy Resource usage: The most important reason to Remove Duplicate Emails from Google Takeout Mailbox is to save resources on the systems and servers because the duplicated files will take up unnecessary space, which can be used to save other mail files rather than an already created one. 

Slow search capabilities: Repeated emails can make searching and navigating emails a hassle and a slow process. Making a simple search a complex process to find the right file required.

Errors and risks: If duplicated data are in large quantities, then errors like responding to wrong messages and risks like deleting the original file can take place. Causing chaos and irrigation. The more organized the files are, the more errors like this can be eliminated.

Improved Backup Efficiency: Less duplication results in fewer files and data to handle, which can make your backup process much faster and efficient.

Organization problems: “clear the space faster, the pace.” The more organized the space is, the faster the process, like auditing, navigation, and also confusion can be avoided. That is why deleting duplicate emails in Google Takeout mailbox file is an important step.

How to Clean Up Duplicate Data From Google Takeout Using Manually?

1. Download your Google Takeout data.
2. Extract your data using the built-in tools on your devices.
3. The mail data will be downloaded in MBOX format. To read such a format we need to import MBOX to Thunderbird email client.
4. Download and Open Thunderbird client and install the add-on plugin called “importexport NG” to start the process of importing the files.
5. Right-click on the local folder and select “importexport NG” > Select Import MBOX files > Individual files.
6. Browse your data folder and click on open.
7. After a successful import, manually find duplicate files. Find files with names like file(2). PDF, file(3) .jpg, etc., also files with with same content and different formats, like file(2). .jpg and file(2) .png.
8. After deleting the duplicate files, export MBOX from Thunderbird.

Shortcomings of Manual Methods

• Time-consuming: Handling the email data manually can be a very lengthy process especially when handling a large amount of data. Without automation, users may spend hours sorting and processing data. 
• Complicated: The complexity of handling the data can be very difficult users may experience hassle when a file has multiple copies of replicated data.
• Human error: Data inaccuracy due to human mistakes is very high because humans are not machines, important data can be lost during the process.
• No bulk support: Manual methods fail when it comes to handling multiple files or bulk data. All the datasets has to be verified by hands.

Expert Choice to Delete Google Takeout Duplicates

Read Similar: Steps to Delete Duplicate Emails from Mac Mail

How to Delete Duplicate Emails in Google Takeout Professionally?

1. Start Google Takeout Duplicate Remover and use Select Files or Select Folder option to add mailbox files.
   
2. Now select the required Google Takeout files from the software GUI from which you want to remove duplicate emails.
   
3. Thereafter, choose a mode to remove Google Takeout duplicates within and across the folders.
   
4. Use advance filters to remove duplicate emails from Google Takeout mailboxes by date range, email address, and email subject.
   
5. Afterward, click on the Folder icon to browse a specific destination folder. However, the software automatically sets the Desktop as the default destination path.
   
6. Click on the Extract button to start deleting duplicate emails in Google Takeout mailbox files.
   
7. Google Takeout duplicate emails were erased successfully, see the message of completion.
   
8. At last, the software opens the destination path so that users can get the resultant data instantly.
   

Conclusion

If you have downloaded Google Takeout backup into the MBOX extension and you think that the downloaded files have duplicates. Then use the above-mentioned steps to remove duplicate emails from Google Takeout mailboxes. If you have any other questions then free to connect with our support team.