Monday 18th August 2025

This technical guide will help you open Zimbra TGZ files in Thunderbird mailbox. If you are among those who want to access the Zimbra .tgz file data into Thunderbird but don’t know how to do it, this is for you. Read the post and complete the Zimbra to Thunderbird migration.

Zimbra Mail and Zimbra Collaboration Suite store their mailbox data in .tgz file. This data file contains email, contacts, calendars, and other mailbox data. However, when a user switches to a different email client and wants to access their important data stored in a .tgz file, it can cause issues.

For all those users, we are here with the perfect solution to open Zimbra TGZ emails in Thunderbird. Continue reading the post and learn about the complete process.

Why Can’t Thunderbird Import Zimbra TGZ Files?

Thunderbird is not familiar with .tgz file and doesn’t have any feature to import them. If you want to open Zimbra TGZ files in Thunderbird, then you need to convert it into a Thunderbird-supported file. Additionally, Thunderbird doesn’t have any add-ons or tools to import a .tgz file. Thus, converting it into an MBOX file will be helpful. Here in this post, we will discuss the best solution for Zimbra tGZ to Thunderbird migration.

Effortlessly Open Zimbra TGZ Files in Thunderbird?

With BLR Zimbra Converter, you can easily access emails from TGZ file into Thunderbird mailbox. The software will effortlessly import multiple .tgz files into Thunderbird-supported format without any data loss. Moreover, the tool will maintain email folder and sub-folder hierarchy and structure while importing your emails.

Moreover, the tool will preserve email key elements and attributes while importing your Zimbra emails. Download the demo version of the software and learn about its working process.

download free software

How to Convert Zimbra TGZ to Thunderbird?

1. Run the BLR Zimbra TGZ Converter on your Windows.

2. Click on the Add File or Add Folder and browse the .tgz files.

Run the tool and load Zimbra TGZ file

3. Choose the email folders you want to access.

Select the email folders you want to open

4. Here you can view your TGZ file data.

preview your emails

5. Choose MBOX from the multiple saving options.

Import Zimbra TGZ to Thunderbird

6. Browse the saving location and hit the Export button.

Open Zimbra TGZ Files in Thunderbird

7. Open Thunderbird, click on Import to open the exported .mbox file.

Import Zimbra TGZ to Thunderbird

Done! Now you can open Zimbra TGZ files in Thunderbird mailboxes.

Why Use BLR Zimbra Converter?

With this tool, there are various outstanding features, some of which include –

  • Effortlessly import Zimbra TGZ to Thunderbird in a few simple clicks.
  • Allows uploading Zimbra TGZ to Exchange, Yahoo Mail, and many other webmail accounts.
  • Maintain email folder and sub-folder hierarchy and structure.
  • Batch mode to open multiple TGZ files into Thunderbird account at once.
  • Compatible with Windows 11, 10, 7, 8, and all other versions.
  • Folder selction option that helps to move important data only.
  • Email preview mode to view your emails before migrating them.
  • Multiple export options to convert Zimbra TGZ to PST, PDF, EML, and other file formats.
  • Date range filter to open emails from a specific date range.
  • A free demo version is available to learn about its working process.

Conclusion

Thunderbird doesn’t support TGZ files directly, but you can still access your Zimbra data by converting TGZ to MBOX format. In this post, we discuss the easy and secure way to import Zimbra TGZ to Thunderbird account. It ensures your data stays secure, well-structured, and easy to access without complications.