Office 365 is a cloud-based service that allows users to access mailbox data, create calendar events, and collaborate with other team members at any time, from anywhere in the world, and on any device. Because of this, businesses are transitioning from on-premise email clients, such as Mozilla Thunderbird, PocoMail, Opera Mail, etc., to Office 365.
However, the challenge with e-mail clients like Apple Mail, Gmail, Thunderbird, Entourage, etc., is that they use the MBOX file format to export their mailbox data, such as e-mails, contacts, calendars, notes, and more. When users try to import an MBOX to Office 365, they struggle to do so as it doesn’t support the MBOX file format.
An easy way to make this switch is to use an MBOX to Office 365 migrator tool. Another way is to follow a workaround that can help you migrate a few emails from your MBOX file to an Office 365 account by configuring Office 365 in an MBOX-compatible e-mail client.
Let’s look at them in detail.
Import MBOX to Office 365 Using an MBOX to PST Migrator
As the MBOX file format is not supported by Office 365, the simplest way to import your MBOX file to Office 365 is to use professional software.
For this, you can rely on Stellar Converter for MBOX Technician. This MBOX to PST migration tool lets you directly import your MBOX file data to an Office 365 account in a few clicks. This tool significantly reduces the time and effort required with lengthy methods, such as Network Upload.
The software has intelligent mailbox conversion algorithms that ensure that the process of MBOX to Office 365 migration is swift and error-free. They also ensure that the original mailbox structure and folder hierarchy are retained.
And in case, you want to save e-mails or other mailbox items as common files, this software can help you do it by saving the mailbox items as PST, PDF, RTF, EML, etc., files.
Note – With the Stellar Converter for MBOX Technician Free version, you can only scan and preview the mailbox items. In case you want to migrate MBOX to Office 365, you will need to purchase the license.
Follow the steps below to use this software to convert and migrate MBOX to Office 365:
- Download Stellar Converter for MBOX Technician from its official website.
- Install it on your Windows PC. Launch it.
- The Select MBOX window will come up on the screen. Use the drop-down menu against the Select Mail Client option to select the e-mail client.
- After selecting the email client, click on either Select File or Select Identity. Then, click on Convert.
- The software will start scanning the selected MBOX file. Once the scan is complete, preview the MBOX data.
- After this, click on the Save Converted File button.
- Choose the Export to Microsoft 365 option in the Save As window. Click Next.
- The Microsoft 365 Login window will appear. Use the drop-down list to select the Microsoft 365 profile in which you want to migrate Thunderbird data. After selecting the profile, click on Migrate.
- Once the software has successfully migrated Thunderbird mailbox data to the selected Office 365 account, you will see the Migration Successful dialog box. Click OK to complete the process.
Another Way to Import MBOX to Office 365
If you want to migrate important emails, contacts, or more from an MBOX file to your Office 365 account, you can do so by configuring your Office 365 account in an MBOX-compatible email client, such as Mozilla Thunderbird.
However, this method is time-consuming, lengthy, and inefficient for many e-mails and other mailbox items. Additionally, some users may find it difficult to configure their Office 365 account in Thunderbird.
For this, you will have to install an MBOX-compatible email client on your PC. To demonstrate the steps, we will be using Thunderbird. Once done, import the MBOX file into it using the ImportExportTools NG add-on.
Once you have done this, follow the steps below to configure your Office 365 account in Thunderbird and move your MBOX data into it:
- Launch Mozilla Thunderbird on your PC.
- Click on the gear icon to open Thunderbird Settings.
- Click on Account Settings in the bottom-left.
- Click on Account Actions and then select Add Mail Account.
- The Account Setup screen will open in a new tab. Enter your Microsoft 365 credentials and click on Configure Manually.
- Next, add the following details:
- Incoming: IMAP|outlook.office365.com|993|Autodetect
- Outgoing: SMTP|outlook.office365.com|587|Autodetect
- Click Re-test to test the settings. Once Thunderbird successfully finds the e-mail settings, click on Done to proceed.
Let Thunderbird sync your Office 365 e-mails. Once the sync is complete, drag and drop the required e-mail from the imported MBOX file into Office 365 folders.
Conclusion
Configuring your Office 365 account into Thunderbird is not an ideal way to move your MBOX file data to your Office 365 account. It is lengthy, time-consuming, and inefficient. Hence, the best way to import your MBOX files to Office 365 is to use Stellar Converter for MBOX Technician. It is an easy to use software that eliminates the need for installing an e-mail client and setting it up. Just a few clicks, and your MBOX file will be imported to Office 365 without any errors.
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