Are you switching from an MBOX-based email client like Thunderbird, Apple Mail, Postbox, or Eudora to Microsoft Outlook? If yes, you must convert your MBOX files to PST, because Outlook does not support the MBOX format directly.
Many users get confused about the safest and easiest way to do this. Don’t worry—this guide explains the best methods, tools, and step-by-step instructions to help you convert MBOX to PST without losing emails.

 Why Do You Need to Convert MBOX to PST?

MBOX is used by many email clients, but Microsoft Outlook only supports PST/OST.
You need MBOX to PST conversion when:

• Moving from Thunderbird or Apple Mail to Outlook

• Migrating email accounts to a new PC

• Switching from macOS to Windows

• Backing up old email data in Outlook format

• Importing archived emails into Outlook or Office 365

Best Way to Convert MBOX Files to PST

There are two major ways to convert MBOX to PST:

1. Manual Methods

2. Professional Automated Tools (Recommended)

Let’s understand each in detail.

Method 1: Manual Method Using Thunderbird & Outlook (Free But Complicated)

This method involves using Thunderbird + an add-on + Outlook installed on your computer.

✔ Steps:

1. Install Thunderbird and add the ImportExportTools NG add-on.

2. Import your MBOX file into Thunderbird.

3. Configure the same email account in Outlook and Thunderbird via IMAP.

4. Drag the imported MBOX mails from Thunderbird to your IMAP folder.

5. Let Outlook sync and download the emails in PST format.

Drawbacks:

• Slow process

• Requires both Thunderbird and Outlook

• Needs IMAP configuration

• High chance of missing emails

• No bulk conversion

• Attachments may break

Best for: Only small-size MBOX files.

Method 2: Best Automated Method (Advik MBOX to PST Converter)

Recommended for All Users – Fast, Safe & Hassle-Free

The most reliable and easiest way to convert MBOX files to PST is by using a trusted tool like Advik MBOX to PST Converter.

It is specially designed to convert multiple MBOX files into PST quickly, without any data loss. Even beginners can use it easily.

Why Advik Is the Best Method?

• Convert unlimited MBOX files to PST in one go

• Maintain folder structure, email formatting, metadata

• Export emails + attachments safely

• Supports Thunderbird, Apple Mail, Spicebird, Opera Mail, Postbox, and 20+ MBOX clients

• Offers Date Filter, To, From, Subject filters

• No Outlook installation required

• 100% secure, fast, and beginner-friendly

• Free trial available

How to Convert MBOX to PST Using Advik (4 Simple Steps)

1. Download and install Advik MBOX to PST Converter.

2. Click Add File / Add Folder and load your MBOX files.

3. Choose PST as the saving format.

4. Click Convert and select the destination to save PST files.

That’s it! Your MBOX files are converted to PST in minutes.

Which Method Should You Choose?

Final Words

The best and most reliable way to convert MBOX files to PST without losing emails is to use a professional automated tool like Advik MBOX to PST Converter.
It ensures 100% data safety, preserves formatting, and saves you hours of manual work.

Whether you are migrating to Outlook for personal use or shifting your entire organization, this method guarantees smooth and secure email conversion.