MSG files are typically created by Microsoft Outlook for storing individual email messages. However, when users switch to email clients like Thunderbird, Apple Mail, or other MBOX-supported platforms, they often face a compatibility issue. That’s when the need to import MSG to MBOX format arises. In this blog, we’ll walk you through the importance, methods, and an automated solution to convert MSG files to MBOX quickly and efficiently.
Why Convert MSG to MBOX?
MSG and MBOX are two distinct email storage formats:
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MSG: Used by Microsoft Outlook. Stores a single message per file.
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MBOX: Supported by Thunderbird, Apple Mail, SeaMonkey, and others. Stores multiple emails in a single file.
Reasons to transfer MSG to MBOX format:
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Migration from Outlook to Thunderbird or Apple Mail
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Archiving MSG emails for long-term storage
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Need for an open-source and flexible email format
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Compatibility with multiple platforms
Manual Method to Import MSG to MBOX (Not Recommended)
There is no direct manual method to import MSG files to MBOX. You need Outlook and Thunderbird both installed, and the process is time-consuming:
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Open MSG file in Outlook.
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Save it in EML format.
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Drag-and-drop the EML files into Thunderbird.
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Export mailbox as MBOX using an add-on.
Limitations:
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Requires Outlook and Thunderbird both
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Risk of data loss
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No batch conversion
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Cannot retain metadata like attachments, formatting, headers
Best Solution: Use a Professional MSG to MBOX Converter Tool
To make the process smooth, accurate, and efficient, we recommend using a reliable MSG to MBOX converter tool like Mydigisoft MSG Converter Tool. This tool allows:
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Batch conversion of MSG files to MBOX
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Maintains email formatting, headers, and attachments
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Supports Outlook-generated MSG files without Outlook installation
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Compatible with Windows 11, 10, 8.1, 7
How It Works:
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Download and install the Mydigisoft MSG Converter Tool.
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Add MSG files or folders.
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Select “MBOX” as the output format.
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Choose the destination path and click Convert.
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Import the resulting MBOX into Thunderbird or other clients.
Benefits of Using MSG to MBOX Converter
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Fast and secure migration
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Preserves original folder hierarchy
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User-friendly interface
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Compatible with large MSG file volumes
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Supports drag-and-drop batch import
Who Needs to Migrate MSG to MBOX?
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IT professionals managing cross-platform email systems
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Email administrators consolidating email archives
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Users switching from Outlook to Thunderbird
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Legal and Compliance Teams needing MBOX archives
Final Thoughts
If you’re planning to switch to an MBOX-supported email client, converting your MSG files is essential. Manual methods are limited and error-prone. Instead, using a professional MSG to MBOX converter tool can save you time and ensure data integrity. Tools like Mydigisoft’s solution make the process seamless — even for bulk conversions.
