How to Import MBOX to iCloud Webmail? Best Ways

Published By Jamie Kaler

Approved By Rollins Duke

Published On April 23rd, 2025

Reading Time 7 Min Read

Overview: Looking for methods to import MBOX to iCloud webmail? If the answer is Yes, then read the complete blog till the end.

In this write-up, we will explain all the possible best manual and alternate solutions to upload MBOX file to iCloud account.

MBOX is one of the popular email file formats. That’s why many people know that the .mbox file extension stands for Locally 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 flawless and hassle-free process to upload MBOX to iCloud Mail.

What Are the Major Reasons to Upload MBOX to iCloud Account?

Might be users is switching from Windows to Mac OS, so migrating emails from MBOX to iCloud required for switching.
iCloud provides better data safety and security than other email services and Windows OS.
Or maybe be user wants to manage all their data on one platform, which requires import MBOX to iCloud webmail process.

How to Import MBOX to iCloud Webmail Manually?

We will use Thunderbird email client to do this process, because it supports MBOX format to store data and allows to connect web and server-based email service like iCloud.

Why Only Thunderbird? Because it’s an open source and free email service, so all users can download and connect Thunderbird easily without paying anything.

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.

#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.

Why Experts Don’t Like Manual Methods?

Because….

High risk of data loss and changes in originality during the import process.
Required to configure Thunderbird within the machine properly with a profile.
Don’t miss any step, otherwise you will lose data.
Basic technical knowledge is required about MBOX, iCloud, and Thunderbird email clients.

Professional Solution – MBOX to iCloud Migration

As we know, there is no way to import MBOX to iCloud webmail. That’s why we suggest you download RecoveryTools MBOX Migrator Wizard. This application allows you to directly import MBOX to iCloud accounts. You can also install this application on your Windows and Mac devices – iOS, iPad, Mac-Laptop (MacBook), etc.

Download this Tool from the Given Buttons:

Download Now Purchase Now

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.
When the process is completed, click on the “Confirm” button.

Also, split a large MBOX file by following this blog.

MBOX to iCloud Migration – 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 import 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.

Frequently Asked Questions

Ques: 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.

Que: 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: 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: 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. MBOX to iCloud Migration tool comes with trial versions. You can test this application before purchasing it. For more information, contact the support team.