How to Import MBOX to iCloud with Attachments – 2 Quick Solutions!

Jackson Strong | November 20th, 2022 | Email Migration

“I want to import MBOX to iCloud account with attachments. After trying with various techniques manually I am unable to export MBOX emails to iCloud account. Kindly help me with this issue.”

– Dan Aykroyd (Sri Lanka)

“How can I to upload .mbox file into iCloud account? I have 1.5GB of .mbox file and want to transfer MBOX to iCloud. Is there any solution available? As I had checked my iCloud account, but there Is no such option to import .mbox file.”

– Christopher Plummer (Germany)

Do you want to import MBOX to iCloud with attachments? Great! You had landed in the right place. Today, in this article I will be sharing with you the step-by-step guide to transferring MBOX file to iCloud accounts.

How to Transfer MBOX File to iCloud Mail?

MBOX is a mailbox file that stores email messages of a particular email client. This file is created and exported from various email service providers like Mozilla Thunderbird, Google Takeout, Spicebird, The Bat, and many more.

As per the query, iCloud doesn’t offer any official method to open .mbox file. You cannot import or migrate emails from MBOX file into iCloud webmail account officially.

However, there are two techniques by which you can import .mbox to iCloud account. Stick to this tutorial and find out both the methods and their working.

In the below segment, I will be sharing an automation trick as well as a free solution.

Method 1. Quick Way to Import MBOX to iCloud Email Account

Install Advik MBOX Converter in your Windows PC. This utility is capable to upload MBOX file into iCloud account. The software maintains the mailbox folder hierarchy and preserves key elements. Also, you can convert MBOX to PDF, PST, EML, MSG, TXT, DOC, etc. file formats.

In addition, you can import MBOX to Gmail, Yahoo, Office 365,, etc. directly. Hence making it #1. email migration software.

Steps to Import MBOX to iCloud Account are as follows;

Step 1. Run Advik MBOX Converter and click Add File.

mbox to icloud

Step 2. Locate and add .mbox into software panel.

import mbox to icloud

Step 3. Choose IMAP as Saving Option from the list.

mbox to icloud converter

Step 4. Enter your iCloud login credentials with IMAP settings.

export mbox emails to icloud account

Step 5. Click Convert button to start migration process.

import mbox to icloud

Finished! This is how you can import .mbox to iCloud with attachments.

Note: Enable IMAP from iCloud Setting Option.

Method 2. Open MBOX File in iCloud Using Thunderbird Client

For this technique, you need to install Mozilla Thunderbird in your computer.

Step 1. Run Mozilla Thunderbird in your computer.

mbox to icloud import

Step 2. Set-up your iCloud account.

Step 3. After successful adding your icloud account, go to Ad Ons.

Step 4. Search for ImportExport NG Plugin and install it.

mbox to icloud import

Step 5. Enable the plugin and go to dashboard.

Step 6. Right click any folder and select “Import folder” option.

mbox to icloud import

Step 7. A pop up window will appear, browse and add .mbox file into Mozilla Thunderbird.

import mbox to icloud

Done! This is how you can access or import MBOX file in iCloud account using Thunderbird Client.

import mbox to icloud

This solution is free of cost. However, the free solution does have few drawbacks like risk of data loss, data modification, and many more. Thus, it is not suggested by tech geeks.

Wrapping Up

Till now, we had discussed how to import MBOX to iCloud account. The above-suggested solution is the best way to minimize your manual efforts and save time. The software will safely transfer emails from MBOX to iCloud with attachments. Download the free trial version to check the performance and reliability of the utility.

Related Article: How to Import iCloud to Gmail? – Complete Guide