To Import MBOX to Office 365 Mailbox – Proven Step-by-Step Guide

  •  Pradeep Kumar
  • Published on:  November 17th, 2023
  • Updated on:  February 21, 2024
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The migration process from MBOX to Office 365 signifies an evolution toward a more comprehensive and collaborative workspace. The following guide will teach you how to import MBOX files into Office 365. From initial preparations to executing the migration, go through the step-by-step approach. Moreover, you can also use the MBOX to Office 365 Migration Tool to facilitate a smooth and successful transition.

MBOX is a widely used file format for storing collections of email messages, typically utilized by email clients like Mozilla Thunderbird, Apple Mail, and more. On the other hand, Office 365 is a suite of cloud-based productivity tools offered by Microsoft, including its robust email service, Outlook. In fact, users can access Microsoft 365 applications and services from anywhere with an internet connection, enabling remote work and collaboration.

A Few Factors to be Considered 

Certainly, importing MBOX files into Office 365 involves several considerations to ensure a smooth and successful migration. Here are some crucial factors to keep in mind during the process:

  1. MBOX files need to be converted to a format compatible with Office 365, typically PST (Personal Storage Table) format, which is widely supported. 
  2. Before initiating the importing process, ensure the integrity of the MBOX files by performing data verification and validation. It will help users to import MBOX to Office 365. 
  3. Consider factors such as the volume of data, downtime impact, and user communication strategies to minimize disruptions.
  4. Set permissions and access rights accurately to ensure users have the appropriate access to their migrated data after the import.
  5. Always maintain a backup of the original MBOX files before initiating the migration. 
  6. Assess the network bandwidth available for the migration, especially when dealing with large volumes of data. 

By considering these factors and implementing a well-thought-out plan, you can effectively manage the migration of MBOX files to Office 365. Now, we will discuss the best ways to import MBOX into Office 365. 

How to Import MBOX to Office 365?

The following section will discuss two procedures. First, let’s discuss the manual solution, followed by a brief description of the automated technique. 

#1. Migrate MBOX to Office 365 Manually

Here, we will divide this section into four stages. 

Step 1: Save Your MBOX Emails Through Thunderbird 

  • First, open the Email program where your MBOX emails are stored.
  • After that, choose the folder you want to move. Click on any email, press Ctrl + A to select all, then right-click.
  • Then, pick “Save As,” choose a location to save the file, and it’ll be saved as EML files on your computer.

Step 2: Add EML Files to Outlook

  • Moving ahead, launch Outlook and create a new folder.
  • Then, drag the saved EML files into this new folder in Outlook.

Step 3: Change EML to PST (Outlook Format)

  • First, Go to File > Open & Export > Import/Export.
  • After that, Choose to export to a file, pick Outlook Data File (.pst), and follow the steps to complete the process.

Step 4: Upload PST to Office 365 in Outlook

  • Make sure your Office 365 account is set up in Outlook.
  • In Outlook, go to File > Open & Export > Import/Export.
  • Now, Select to import from another program, choose Outlook Data File (.pst), then pick your PST file and your Office 365 account.
  • Lastly, Click Finish to upload the PST file to Office 365.

Here, we’ve successfully imported MBOX to Office 365. But there are various disadvantages.

Read: Convert MBOX To PST Files Without Hassle

Problems with Manual Method:

  • It takes a lot of time and needs a good internet connection.
  • It’s quite complicated and needs technical knowledge.
  • Additionally, it requires both MBOX and Outlook software installed.
  • Moreover, you have to set up both email accounts in Outlook.

#2. Automated Solution – Using an MBOX to Office 365 Migration Tool:

If you’re facing these issues, consider using an MBOX to Office 365 Migration Tool, a professional tool for a smoother MBOX to Office 365 migration. It simplifies the process and avoids these problems. Moreover, this software offers various features, such as file previewing, maintaining hierarchy, duplicate removal, and many more. In fact, users can directly import their MBOX files to Office 365 without facing any challenges. Additionally, this software also allows users to convert MBOX to EML, PST, and different file formats without interruptions.  

Steps to Import MBOX Into Office 365 in Bulk

  • First, download and Install the MBOX to Office 365 Migration Tool on your computer. Run the program once it’s installed.
  • Then, pick the folders or specific files you want to bring over to Office 365.
  • Once selected, click the “Next” button to proceed.
  • From the options given, select “Office 365” as your destination. Then, authenticate the login process.  
  • At last, click the “Convert” button to begin transferring your files to Office 365.

Final Words 

Migrating your email data from MBOX to Office 365 marks a significant shift toward a more integrated, collaborative, and feature-rich workspace. Throughout this guide, we’ve navigated to import MBOX to Office 365, highlighting manual methods and professional methods. The manual process involves several steps: exporting MBOX emails as EML files, adding them to Outlook, converting them to PST, and finally, importing them into Office 365. However, this method can be complex, time-consuming, and demand technical expertise.

About The Author:

Pradeep is a dedicated technical content writer who thrives on the intersection of technology and storytelling. With a background in engineering and a passion for writing, he brings a unique blend of technical expertise and creativity to his work. Pradeep’s articles not only educate but also entertain, making complex technical subjects approachable and intriguing for a broad audience. His work has been featured in numerous tech blogs, making him a trusted source for tech enthusiasts and novices alike.

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