How to Import MBOX File to Office 365?

MBOX is a file format used by popular email clients like Mozilla Thunderbird, Apple Mail, Eudora, Powermail, Kmail, etc. It stores all emails of a mailbox into a single Folder. But as a matter of fact, MBOX is not directly compatible with Office 365, and this necessity to convert MBOX into Office 365 leads to the requirement to import MBOX files. In this article, we will tell you about how to import an MBOX file to Office 365. Firstly, have a look at some of the features of the email client that is offered by Office 365.

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Microsoft Outlook 365

Office 365 is a web-based office suite that provides complete Microsoft office applications. Further, Outlook is one of its applications that allows professional and office users to manage their personal information. Users can operate Microsoft 365 on a large-scale business and enterprise level. Now, let us check out the different advantages of Office 365 that insist users to switch on it.

Some features of Microsoft Outlook :

  • Outlook can send and receive emails and manage them accordingly.
  • The main characteristic that makes it different from other email clients is the Offline mode.
  • PST and OST are the two mainly supported file formats in MS Outlook.
  • Users can add multiple accounts in Outlook from different email clients.
  • Shortcut keys are also there to help the user work even faster.
  • UI is easy to use and perform.

These were some features of Microsoft Outlook 365. Furthermore, we will see the reasons for importing MBOX file to Office 365.

Why do we Need to Import MBOX File to Office 365?

Sometimes, you need to migrate your emails to a different email client in search of better features or job requirements. MBOX files become large with time which is difficult for the users to operate their mails. Users import their MBOX file to Office 365 as it is more reliable.Now, we will continue to explore the ways to Add MBOX file to Office 365 that is reliable and trustworthy.

Techniques to Import MBOX to Office 365

These are the 2 best methods for transferring MBOX emails to Office 365. Both the methods are 100% safe and do not lead to data loss.

  • Manual Method to Open MBOX to Office 365 Freely
  • Direct Technique with the help of a professional tool.

Add MBOX file to Office 365 Manually

To import MBOX file to Office 365, you first need to convert MBOX file to PST.

  1. Open Mozilla Thunderbird and click on the folder you want to Transfer.
  2. open mozilla thunderbird
  3. Now, select all the emails by pressing CTRL+A.
  4. select email
  5. Right-click on the selected file and choose to Save as.
  6. choose save aa
  7. Save your file in your desired location using the select folder button.
  8. save file
  9. Then, Open MS Outlook 365.
  10. Use the drag and drop feature to import MBOX files to Office 365.
  11. convert mbox to office 365
  12. At last, all your emails are imported to Outlook.
  13. processend

Professional Method to Import MBOX file to Office 365

The best solution to transfer your emails hassle-free is MBOX to Office 365 Migration Tool. This software allows you to import your MBOX files into Office 365. It can also convert MBOX file into Gmail, PST, PDF, EML, EMLX, MSG, HTML, OST, Yahoo Mail, etc file formats and Email clients. It has some advanced features like Data range filters, Remove duplicate emails and many more.

Step by Step Guide to Import MBOX file to Office 365

  • After Downloading, Install and Open the software.
  • install mbox converter
  • Select yours .MBOX file by using the Browse button.
  • browse file
  • Then, Tick the folder in the tree-like structure present on the left corner and Click Next.
  • click next
  • Choose Office 365 from the drop-down menu.
  • choose office 365
  • Log in with your credentials and tap Sign In.
  • sigin
  • Here, Mark on Remove duplicate emails checkbox for deselecting duplicate emails.
  • Select Migrate or backup emails without attachment as per your need.
  • try feature
  • Mail Filter is used to back up the emails between a particular time duration.
  • Customize your backup folder name using Custom folder name.
  • custom folder name
  • Click the Convert button to import MBOX file to Office 365.
  • click convert


In this blog, we discussed MBOX and Office 365 with their features. In addition, we have cleared your doubt about how to import MBOX file to Office 365 by using two techniques. The manual method has its limitations as it is limited to only emails.
However, the professional method saves your time and keeps the flow ascending.


How can I import MBOX to Office 365?

→ You can use the MBOX exporter tool to save your emails into Outlook 365. It is easy to use and imports all your data very fast.

How to import MBOX file to Outlook 2016?

→ Use the Drag and Drop feature to transfer your emails from Thunderbird to Outlook 2016 instantly.

  • Open Thunderbird and select desired emails.
  • Open Outlook 2016 or any higher versions and click the folder in which you want to import your emails.
  • Drag the selected emails from Thunderbird and Drop them in the Outlook folder.
  • At last, you have imported the MBOX file to Outlook.

About The Author:

I'm a content writer in the field of Email Migration, Data Recovery, Email backup, and File Management. I started this writing career two years back. I think the vast range of information in this industry is the reason I am so fascinated to read about the newer techniques and technology.

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