eSoftTools

Thunderbird Mailbox Splitter Software

The software helps to manage larger Thunderbird mailbox files into smaller ones in just a few mouse clicks. This software has two distinct functionalities: “Split Thunderbird Mailbox” and “Merge Thunderbird Mailbox” folders in a single application. The advanced features of this software is-

Thunderbird Mailbox Splitter Software – Key Features


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Demo Version: Using demo edition split and merge each MBOX/ Thunderbird file with 25 emails free of cost.


Software Working Screenshots


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All Detailed Features of Thunderbird Mailbox Split & Merge


Split Thunderbird Mailbox Folders

Efficiently split large or oversized Thunderbird mailbox folders into smaller files and improve Thunderbird performance. The software offers multiple advanced splitting options to meet different user requirements:

Check working process >> How to Split Thunderbird/MBOX file to smaller files?

Merge Thunderbird Mailbox Folders

Combine multiple Thunderbird mailbox folders into a single mailbox file for easier access to email data. The software provides flexible Thunderbird merging options such as-

Auto-Load Thunderbird Mailbox

The software automatically detects and loads Thunderbird mailbox data from the default Thunderbird profile with just one click. This intelligent feature saves time and eliminates manual file searching and adding to the software for scanning.

Batch Thunderbird Mailbox Processing

The batch Thunderbird Mailbox processing feature enables users to process multiple Thunderbird mailboxes in one go. Batch mailbox conversion eliminates the need to handle every mailbox individually.

Preserve Folder Hierarchy

The software maintains the original Thunderbird folder structure during Thunderbird mailbox splitting or merging. All folders and subfolders are recreated exactly as they appear in the original mailbox hierarchy.

4-different options for Thunderbird Splitting

The software provides 4 easy ways to split Thunderbird mailbox folders. Users can split Thunderbird folders by Size, Year, Date, and Email Address. All these splitting modes make the process more convenient and help users manage mailbox data according to their specific requirements.

Selective Folder Processing

If you need to split or merge any specific folder from Thunderbird, then this feature “Selective Folders” is very helpful and saves time. Users only need to select the required folders (single or multiple) and proceed with the splitting or merging process.

Filter Emails from Thunderbird Folders

Thunderbird Splitter tool provides an email filter feature that allows users to filter emails from Thunderbird folders based on a date range. Users can specify the “From” and “To” dates, and the software scans and splits or merges only the emails that fall within the given date range.

Compatibility with All Thunderbird Versions

The software proudly supports all versions (older and latest versions) of Mozilla Thunderbird mailboxes. Without worry, you can download Thunderbird Splitter software and fulfil your mailbox split or merge requirement.

Compatibility with All Windows OS

This software is specially designed for the Windows OS platform and successfully supports all versions of the Windows operating system, including Win 11, 10, 8.1, 8, 7, XP, Vista, and others.


Frequently Asked Questions (FAQ)


How to split Thunderbird Mailbox folders into smaller files?

  • Download eSoftTools Thunderbird Splitter Software from here- >> Download Now
  • Open the software and click on the “Add File/Folder” button from the software toolbar.
  • From the section “Select Thunderbird Profile”, choose the option “Auto Load Thunderbird Profile” and click the Next button.
  • The software displays all configured mailboxes in the left panel of the software.
  • Choose the folder(s) from the folder tree hierarchy
  • Click on the “Split & Merge” button from the toolbar and choose the option “Split MBOX File” and click the Next button.
  • Select a split option from Split by Size, Split by Date, Split by Year, or Split by Email Address.
  • After selecting the splitting option and its relevant settings, click on the Next button.
  • Now, choose the saving location and click the “Split” button to start the Thunderbird mailbox splitting process.

Check the complete process, by visiting here: - How to Split MBOX file to smaller files?

What splitting options are available to split Thunderbird folders?

The software offers 4 options for splitting Thunderbird folders, such as Size, Year, Date range, and Email Address.

Is it possible to split only the Inbox folder from Thunderbird?

Yes, the software allows you to split any individual folder.

Does it maintain the original folder structure after splitting or merging?

Yes, the software preserves the original folder hierarchy and structure during both splitting and merging processes.

Do I need Thunderbird installed on the computer for splitting?

No, this software never requires Thunderbird, Apple Mail or any other email client to be installed on the computer.

Can I view Thunderbird emails before splitting them?

Yes, the software has an inbuilt preview panel to display the email sender, subject, and date.

Does the software support batch processing?

Yes, it supports batch processing.

Will my email data and attachments remain safe?

Yes, 100% of your email data and attachments are safe while splitting Thunderbird inbox folder.

Is the software compatible with all Thunderbird versions?

Yes, the software is compatible with all versions of Mozilla Thunderbird.