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Convert Outlook OLM to MBOX on Mac Outlook 2011, 2016, 2019

The best method to convert Outlook OLM to MBOX. Learn many ways to perform Mac Outlook file conversion.

Switching applications and looking for ways to convert Outlook OLM to MBOX? This article will answer all your questions but before looking into the solution, you must know what these files are. An OLM file is a file extension that belongs to Outlook for Mac operating system. Unlike Outlook for Win where the entire database is saved in the PST format, the Mac counterpart saves it in an archive folder. 

An OLM file stores contacts, emails, folder lost, calendar, tasks, notes, journals, etc. The MBOX format is a mailbox file extension that is used to organize and store email messages. It is used by many popular email clients such as Thunderbird, Entourage, Eudora, Gmail, etc. 

"I have decided to switch from Mac Outlook to another email service. For this purpose, I will have to convert Outlook OLM to MBOX. I searched for the best ways to do it but have not found any perfect solution. How can I execute this task without affecting my data integrity?"

How to Convert Outlook OLM to MBOX?

There is no direct way to convert the files using the manual method. People move from one email service to another for many reasons and also because their work demands flexibility. The large business organizations prefer going for an automatic solution rather than relying on manual practices. If you are one of them, then you must try Mac OLM file converter that exports the files to many formats. It can easily convert the files to multiple formats such as MBOX, PDF, PST and many more. It provides many amazing features as mentioned below:

  • Bulk convert OLM to MBOX in a single attempt.
  • Provides date filter option & naming conventions.
  • Preserves on disk hierarchy & data integrity.
  • Exports the files along with their attachments.
  • Supports Mac Outlook 2011, 2016, and 2019.
  • Keeps the folder structure intact & secures the data.

Note: If you are a Windows user, then you must use the OLM File to PST converter.

Guide to Convert OLM Files to PST

  1. Install and run the software and add the OLM file(s) and folder to it.
  2. Then, select the files to convert and click on MBOX format.
  3. Browse a location to save these files and click on the 'Export' button.

Manual Way to Convert Outlook OLM to MBOX

First, open Mac Outlook and select the data you want to convert. Then, drag and drop them in a local folder where they'll be saved in MBOX. After having created an MBOX file you can move them to another application or email client.

Frequently Asked Questions

  1. Can I use this software on Mac Outlook 2016?
    Yes, you can easily run this tool on Mac Outlook versions 2019, 2016, 2011. It also supports all versions of Macintosh.
  2. Can I perform selective conversion of OLM files?
    Yes, you can convert any file from any folder. Also, it allows you to apply a date range filtration that helps you export the content within a specific date range.
  3. Does this tool apply any limitations on the file size?
    No, there are no such restrictions. You can import files of any size. Also, it supports orphan OLM files.

Releated: How to Transfer Mac Outlook to Mac Mail in Simple Steps?


In this blog, you got to know how you can convert Outlook OLM to MBOX. Users can either choose a manual method or the automatic solution to achieve results depending upon their choice. We recommend using the tool we have suggested here. This software is specifically built for such conversions only and provides a safe environment to perform the task.

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