Bulk Import MBOX to iCloud with Attachments & Mail Structure
Overview: To import MBOX to iCloud Mail on Mac & Windows, you can go for the tested manual approach, i.e., using Apple Mail or Thunderbird as an intermediate email client. However, for the direct migration of multiple large MBOX files to an iCloud account at once, with all attachments & folder hierarchy preserved, use RecoveryTools MBOX to iCloud transfer tool.
Introduction to MBOX and iCloud
MBOX is one of the popular email file formats. That’s why many people know that the .mbox file extension stands for Local Mailbox Storage. It is such a popular file format that even Google is using it now.
Unlike MBOX, iCloud is a webmail and cloud storage account by Apple Inc. for all iOS, macOS users. iCloud also provides Email features where you can send, receive, and organize your emails.
And multiple situations arise when users need to import MBOX to iCloud webmail. But it is not as simple as you think. So, we have mentioned each step and details for the easy and hassle-free process to import MBOX files to iCloud Mail.
What Are the Major Reasons to Upload MBOX to iCloud Account?
Many users need to transfer MBOX files from their previous email client or service to iCloud Mail for the following reasons.
- Switching to iCloud: Sometimes users save their emails in MBOX file format and want to transfer the data to their Mac devices.
- Easy Access & Portability: MBOX files can’t be accessed without a desktop client. Saving MBOX files on iCloud storage lets you view them on iPhone/iPad and other Android devices directly.
- Data Loss: To avoid the risk of data loss, users switch their data to iCloud so that they can access it even when the system fails.
- Safety and security: In case your MBOX files get corrupted or your system gets affected by a virus. Hence, saving files to iCloud helps users protect them online.
- iCloud Backup Restoration: Users trying to recover iCloud mail from the available MBOX backup after accidental deletion or in case of attacks.
How to Import MBOX to iCloud Webmail for Free?
Note: For a free iCloud account, storage space is limited to 5GB shared over emails in iCloud Mail, files, & folder in iCloud Drive. If you have MBOX files larger than 5GB in iCloud Webmail, you must upgrade your plan.
Method 1: Transfer Old MBOX Emails to iCloud Using Apple Mail on Mac
Although there is no direct way to import MBOX files into iCloud webmail directly. You can use Mail App on Mac to natively upload files.
- Firstly, open Apple Mail on your Mac system.
- Then, connect your iCloud account if you have not connected (Click Mail > Add Account and choose iCloud as the account type).
- Click on the “File” option >> Import Mailboxes and select Files in MBOX Format.
- Click Continue and choose your MBOX file data.
- Select the MBOX files stored on the Mac device & press Done.
- Once MBOX files are imported Apple Mail.
- Lastly, select emails in MBOX files (press Cmd+A to bulk select) , drag and drop them into the iCloud folder.
Method 2: Import MBOX to iCloud on Windows Using Thunderbird
We will use Thunderbird email client to do this process, because it supports MBOX format to store data and allows users to connect to server-based email services like iCloud. This method is divided into multiple steps to import MBOX to iCloud webmail, so follow every step:
#1: Import MBOX File to Thunderbird
- Download, install, and set up Thunderbird properly.
- And then, install the “ImportExportTools NG” add-on on your Thunderbird.
- And restart your email client again.
- Right-click on any folder or choose the “Tools” icon.
- Select “ImportExportToolNG” >> “Import MBOX File” option.
- After that, a pop-up comes and choose the “Import Directly One or More MBOX Files” option.
- Locate the path of the MBOX file, select it, and choose the “Open” button.
#2: Connect iCloud to Thunderbird Account
- Restart your application.
- Head to the “Tool” tab and choose the “Account Settings” tab.
- Locate the “Account Actions” and choose the “Add Mail Account” option.
- Provide the login details like full name, email address, and password of the iCloud account.
- Hit on the “Continue” icon and select “IMAP” as configuration and select the “Done” icon.
- At last, click on the “Finish” button to import MBOX to iCloud webmail.
Note: To configure iCloud Mail in Mozilla Thunderbird, you usually need an app-specific password.
#3: Import MBOX to iCloud by Moving Option
After uploading the MBOX file and connecting the iCloud account to the Thunderbird account. Now we will move the uploaded emails to the iCloud account.
- Restart the Thunderbird application.
- Right-click on the uploaded MBOX.
- Choose the “Move To” option.
- Select the connected iCloud account’s folders.
- And finally, your email will move to an iCloud account.
Limitations of Using Manual Methods
- Importing data using the manual method takes time and may be difficult for users who have multiple MBOX files.
- Users require some technical knowledge to perform the manual method, and not suitable for non-tech users.
- It may have the risk of incomplete import, such as missing attachments, email attributes, folders, and more.
- In case your MBOX file is corrupted, Apple Mail will not import and may create an error in the process.
Best Way to Import MBOX Mail to iCloud from Any Source
RecoveryTool MBOX Converter for Mac and Windows is an automated software application that lets you directly save MBOX data on iCloud Mail storage with attachments and in an identical way without any configuration or dependence on email client in a secure way.
Download this Tool from the Given Buttons:
Note: Our tools are available for free trial purposes. You can install it on your Windows and Mac computers to know the process before purchasing it. The free edition allows you to export only 25 MBOX emails to iCloud accounts.
How to Import MBOX to iCloud Webmail in Bulk? All Steps
- Download and install the software on your system, and then read all the instructions and hit the “Next” button.
- Select MBOX files with “Dual Selection Options”. If you have multiple MBOX files, then choose the “Select Folder” option.
- After this, you need to select the required MBOX file/folder from the list.
- Now, choose the “IMAP” option in the list of file-saving options.
- Also, you can choose the “Advanced Filter” option for the selective migration process.
- Enter your iCloud account credentials with iCloud IMAP settings.
- After this, click on “Next” to import MBOX to iCloud accounts.
MBOX to iCloud Migration Tool – Features & Its Benefits
- 100% Secure Safe Tool: The program is completely secure from any threat or virus attack. It is tested by many professional labs and organizations. Also, you can enter your account credentials without any security issues. The software will never store your data inside the software, and its interface caches.
- Keep Email Properties Preserved: The software keeps all your MBOX email properties during the MBOX to iCloud import process. One can easily use this application to upload multiple MBOX file emails to an iCloud account. During the process, the software maintains all your email data with elements such as email with attachments, email addresses, email subjects, internet headers, images, etc.
- Selective Email Import MBOX to iCloud: One of the required options is selective email migration. But by using this application, you can migrate *.mbox files to iCloud accounts selectively. The software gives many filter options, which are helpful for all types of users. You can migrate data by date range, by to, from email address, by subject, and many more.
- Options for Bulk Migration: The software not only imports MBOX to iCloud webmail. But using this application, one can easily import multiple MBOX files to an iCloud account at once. The software provides dual selection options to choose multiple MBOX files at once. The add folders option allows you to load multiple MBOX files in a folder (including subfolders) into the software interface.
- Import MBOX to iCloud Directly: There is no need to follow extra steps; this software can upload data directly with complete email data. The simple interface makes the process smooth and flawless.
FAQ: Import MBOX to iCloud Mail
Ques 1: Can I install this application on my Windows Server 2016 machine?
Ans: Yes, the software supports all Windows Server operating systems. But you can operate this application like a client-based application.Ques 2: Does the software keep the email folder hierarchy structure during the process?
Ans: Yes, the software preserves the MBOX email folder hierarchy structure during the process.Ques 3: Can I import four MBOX files to iCloud accounts in a single process using this application?
Ans: Yes, the software supports dual selection options to choose multiple MBOX files at once.Ques 4: Can I use this application to upload Thunderbird MBOX files to iCloud accounts?
Ans: Yes, the software allows you to import Thunderbird MBOX files to iCloud accounts without any issues.
Conclusion
The above article described the solution to import MBOX to iCloud webmail. If you are one of those who want to move emails in *.mbox files, then download the program mentioned here. You can install this application on your Windows and Mac Computers. The MBOX to iCloud Migration tool comes with trial versions. You can test this application before purchasing it. For more information, contact the support team.

















