How to Import OLM to Thunderbird on Mac – Free Methods

Written By Suman Rawat
Updated on January 14th, 2025

Summary: As you can observe, multiple email applications offer several professional features that help ease the work. As the needs of the users are changed according to the requirements, users are more likely to switch to an advanced email application from their initial email client. So, for users who are struggling with the techniques to import OLM to Thunderbird on MacOS, we have covered the resolution for the same using simple and understandable methods. We have also introduced a third-party Mac OLM Converter, which helps ease the conversion process.

Let’s begin this write-up before discussing the solutions. Let’s first discuss the reasons behind this cause.

Why Do Users Need to Import OLM Files to Thunderbird Mac?

There are several reasons behind the import of Mac Outlook OLM to Thunderbird. Among many, let’s discuss some of the primary ones, such as:-

Thunderbird possesses more advanced security features than MS Outlook.
Outlook does not permit users to create flags, folders, and rules.
Thunderbird is known for its free-to-download email client.
In MS Outlook, when the mail folder size reaches its maximum level, it is easily prone to email crashing issues.

Overall, there are many other reasons apart from this, but these are some of the primary ones. Proceeding forward, let’s discuss the solutions for this cause.

2 Best Solution Available to Import OLM to Thunderbird

Here, we are going to discuss two of the best solutions available to migrate OLM mailboxes into Thunderbird. Firstly, the manual approach, and secondly, the professional solution.

Let’s look at both methods step-by-step.

#01 Manual Method Available to Convert OLM to Thunderbird

In the case of the manual procedure, follow the steps below, such as:-

Firstly, open your Mac Outlook application.
After that, select the box ( mailbox ) you want to share.
Further, drag and drop the selected mailbox on your computer desktop.
Lastly, the box will now become an MBOX file on your desktop.

This way, Mac users can convert OLM to MBOX and use the MBOX file with any email friend. This manual method possesses some limitations along with it.

Let’s discuss these demerits in more detail.

Limitations of the Manual Procedure

Such as:-

To implement this procedure, users need to have basic technical knowledge.
Using this technique, the user can change only one OLM file at a time.
In between, missing a single step while performing the complete procedure means starting over from the beginning.
The manual procedure consumes a lot of time and effort.
Chances of data modification.

Overall, there are many other drawbacks apart from these. However, to avoid such limitations, we recommend using the automated method to import OLM to Thunderbird. This utility provides a quick, simple, and easy method for conversion.

Let’s discuss this tool in more detail.

#02 Automated Method Available to Access Mac Outlook Files to Thunderbird

Mac OLM Converter is the most reliable and efficient tool for exporting Outlook OLM mailbox items into various file formats and email clients. For example, it can easily convert OLM to MBOX, PDF, MSG, and many other file formats. Users can also import OLM to Gmail, Office 365, Yahoo, and several other email clients. Additionally, there is no file size limitation to export a Mac Outlook mailbox. It possesses a simple and easy-to-use interface. Users can easily import bulk OLM files at once.

Let’s proceed and look for the instructions for this software in more detail.

Guidelines to Import OLM to Thunderbird on Mac

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Download, Install, and Run the OLM Converter on your MacOS. Hit the Continue option to proceed.
Choose the Select Files or Select Folder option to browse OLM data. Hit the Open and Next buttons.
Further, select the OLM file from the tree structure and double-click it to preview the OLM file details. Click the Next button.
Now, choose MBOX in the Saves/ Backup/ Migrate As option. Select the in-built features you want. Enter the destination location in the Path to Save option.
Lastly, hit the Convert button to initiate the process of conversion.

Conclusion

In this complete article, we have stated both the manual and the professional approach, along with stepwise instructions. However, the manual-free solution possesses certain limitations, which is why this technique is unsuitable. Therefore, we suggest going for the top-notch automated OLM Converter for Mac to import OLM to Thunderbird. This utility is the most effective and offers a free demo version. This is how users can check the workings of this tool.

About The Author:

Suman Rawat

Suman Rawat is a technical content writer and expert in the fields of email migration, data recovery, and email backup. Her passion for helping people has led her to resolve many user queries related to data conversion and cloud backup.