How to Migrate Emails from Thunderbird to Office 365?

Moving Thunderbird email into Office 365 is not an simple job. Any business that is in need of it will usually have to move many millions of large mailboxes one platform to the next. Along with the challenges and threats formatting incompatibility is an important role between the destinations and source platforms. Therefore, different companies adopt different methods to complete Thunderbird for Office 365 migration. If your company is searching for the perfect solution to moving MBOX into Office 365, then you are in the right spot This blog is perfect ideal for you.

In this blog, we’ll briefly discuss the manual method in order to transfer MBOX files to Office 365. Before we get into the various options to import the MBOX files in the Office 365 account, let’s briefly look at the major motives behind this process.

Why would you like to migrate Thunderbird to Office 365?

Here we have listed the main reasons users would like to migrate to Thunderbird and to Microsoft Office 365:

• Since Office 365 is entirely cloud-based You can access your email as well as files and Office programs from any place and any device.
• Through Office 365, it’s Microsoft taking over all the accountability for security and reliability.
• Offers additional features like sharing data, storage communications, collaboration, and data sharing
• Offers Office applications, including Word, Excel, Access, Skype, Exchange Server and many more. for working online
• Passwords can be saved in the system tray of their computer so that they do not have to sign in multiple times.
• Office 365 lets you share calendars, mailboxes and contacts and modify documents in real time with the help of collaboration tools.
• Offers Office suite applications at reasonable prices, including – Exchange online server as well as Office 365 Mail

Methods to Migrate Thunderbird Email To Office 365

Below are some of the most commonly employed manual methods to migrate Thunderbird mailbox data onto your Microsoft Office 365 account. Let’s go over them in detail below:

Method 1: Import MBOX Files to Office 365

The procedure that you have to use to migrate your Thunderbird MBOX files in Office 365 is divided into two steps. First, you must backup your Thunderbird mail in the Windows PC and then import it into EML files in order to complete the process of migration. Here are a few easy steps to follow for these steps:

Step 1: Save Thunderbird Email to Windows PC

1. The first step is that you must create a new folder on your Desktop.
2. Then, you can then open your Thunderbird application on your system.
3. Open the message folders in which the messages that need to be transferred to Thunderbird into MS Outlook are saved.
4. Select all messages, and then click on the right-click icon; select the save to save it as an option.
5. Finally, you have to open the desktop folder, and save the emails in there.

Step 2: Import EML to Office 365

1. Now you can open Outlook. Outlook email application.
2. Then, visit the Folder within Outlook in which the Thunderbird message will be stored.
3. You can also click on either the Folder tab and then choose”New” as the Folder option.
4. The “Create New folder” dialog box will be displayed, choose the name of the new folder.
5. Then, click on the OK button to move your Thunderbird mail into Office 365
6. You will view this Folder in the left-hand side in the application for email.
7. Then, click on the Folder to open its contents in the middle panel.
8. The next step is to transfer all mails from the Desktop folder into the folder within Outlook.
9. Then the data has successfully transferred.

Method 2: Send as Attachments

• Now start Mozilla Thunderbird on your Windows PC.
• You must now choose messages to be transferred into the O365 accounts from Thunderbird.
• After you choose the files, click right them and select to forward them as an attachment.
• A brand new window for email will be opened where emails can the word “email” can be included in the form of EML attachments.
• In this case, you will need to input the email address to transfer MBOX to Office 365
• Once you’ve done that, you’ll need follow the steps to then click at the send button.
• When this process has complete you will be able to see the Thunderbird emails in the Office 365 Mail App.

You can check the process of migration by logging into O365 and then opening every email in your browser using EML formatting.

Limitations of Migrating Thunderbird Email to Office 365 Manually

• Restricted to just a few emails → The Thunderbird email-to Exchange online export doesn’t involve the transfer of an entire email folder that contains over 500 email messages. It is only able to allow the migration of only a handful of important conversations.
• Long process → The process is lengthy and complicated that took a long time for users to move each email one at a time to their Desktop and then onto Outlook.
• Time-consuming → The manual method takes a long time to send out hundreds of Thunderbird messages to Office 365 with large attachments.
• Data integrity → The format of emails or SMTP title is changed when you send an email by hand.

Method 3: Professional Approach to Migrate MBOX to Office 365

The approach we been discussing in the past is not suitable in any way to migrate MBOX files that have a massive quantity of attachments, emails and contacts in Office 365 account. It is the best option to utilize a professional application which is specialized at exporting Thunderbird mailboxes to Office 365. This way you can overcome the limitations of manual methods using third-party software. A utility MBOX-to Office 365 Migrator to make the process of transferring more easily accessible.

Conclusion

In this article there is an extremely long and laborious manual procedure that is utilized to transfer multiple mailboxes. In this article, the motives behind making the task simple for administrators are discussed. As you will notice there are some limitations with manual methods as well as a chance of losing data. So, I’d suggest to utilize an external tool to move Thunderbird onto Office 365.