Easily Import MBOX Files into Google Workspace

Posted by Bella Swan
7
Jul 22, 2025
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If individuals or organizations need to import MBOX files into Google Workspace, it’s important to understand that MBOX is a file format commonly used by older email clients like Thunderbird and Apple Mail. Importing these files into Google Workspace requires careful preparation and execution. This guide will take you through the key steps and best practices to ensure a seamless migration.

Whether you’re switching to a new email platform or consolidating your data, moving emails between systems can be challenging. Here, we’ll discuss what MBOX files are and why migrating these mailboxes to Google Workspace might be necessary.

Understanding MBOX Files and Google Workspace

MBOX, short for Mailbox, is a file format designed to store email messages. It is widely used by many desktop email clients to save emails locally on a user’s device. Each MBOX file contains multiple email messages combined into a single file, allowing easy storage and management of emails.

Google Workspace is a cloud-based productivity and collaboration platform that includes tools like Gmail, Google Drive, Docs, Sheets, and more. Gmail, which is part of Google Workspace, offers powerful features such as advanced search capabilities, effective spam filtering, and the convenience of accessing your emails from any device connected to the internet.

Manually Import MBOX File to Google Workspace

If you want to migrate MBOX files to Google Workspace manually, you can use the Thunderbird email client as an intermediary:

  1. Open Thunderbird and go to Account Settings > Account Actions.
  2. Select Add Account and set up your Google Workspace account using IMAP settings.
  3. Install the ImportExportTools add-on in Thunderbird.
  4. Use the add-on to import your MBOX files into Thunderbird’s local folders.
  5. Once imported, simply drag and drop the emails from the local folders to your Google Workspace account profile within Thunderbird.
  6. Thunderbird will then sync these emails with your Google Workspace account.
  7. Finally, log in to Google Workspace via Gmail to verify that your MBOX emails have been successfully imported.

Import MBOX File to Google Workspace Using GWMMO

Google also offers a free tool called Google Workspace Migration for Microsoft Outlook (GWMMO) which can assist in migrating emails, including from PST files, to Google Workspace. Here’s how you can use it:

  • Download and install GWMMO on your computer.
  • Log in using your Google Workspace credentials.
  • Launch GWMMO and select the PST file that contains your email data.
  • Choose the data types you want to migrate (emails, contacts, calendar, etc.).
  • Begin the migration process to transfer the mailbox data to your Google Workspace account.

Note: Since GWMMO primarily supports PST files, you may need to first convert MBOX files to PST before using this tool.

Migrate MBOX Files to Google Workspace

To efficiently transfer your MBOX files directly to Google Workspace, you can use a dedicated CubexSoft MBOX Converter for Mac tool. This software simplifies the migration process, allowing users to quickly and securely move their mailboxes to Google Workspace without manual hassle. With just a few simple steps, you can seamlessly migrate your MBOX files to GWS. The following section will guide you through the straightforward procedure to complete the transfer.

How to Import MBOX File to Google Workspace?

Follow these simple steps to import your MBOX files using specialized software:

  1. Launch the software and add your MBOX files by using either of the two available Add buttons.
  2. Click Next to proceed.
  3. Select Gmail (Google Workspace) from the list of saving options and enter your login credentials.
  4. Press the Export button to start importing your MBOX files directly into Google Workspace.

Conclusion

Migrating emails from MBOX to Google Workspace can greatly improve your email management and productivity. Whether you choose to use native Google tools, third-party CubexSoft MBOX to Gmail Converter, or automated utilities, following the recommended steps and best practices is key to a smooth mailbox migration. For users unfamiliar with the technical aspects, the software method outlined here offers a straightforward and hassle-free solution to migrate MBOX files without needing advanced technical skills.

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