GainTools MBOX Converter

gaintools-mbox-converter

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Olivia Middleton· 4mo ago
Our office recently switched from Mozilla Thunderbird to MS Outlook. I had many years of important emails saved in MBOX files, but Outlook cannot open them directly. So, I needed a tool that could convert multiple files at once while keeping all email folders organized. I searched for a solution and found the GainTools MBOX Converter. The tool allowed me to convert all my files in one go without losing any original data. Plus, the interface was very simple and user-friendly.
Sachin Kumar· 4mo ago
A few weeks ago, one of my old email backups came from Thunderbird in MBOX format, and I had to open the data in Outlook. I tried checking manual options first, but they felt confusing and risky for a large mailbox. Then a friend suggested GainTools MBOX Converter, so I tested it on a copy of my files. The tool converted my emails properly, and the folder order stayed easy to follow after export. Attachments also opened fine. Since that job, I have kept it as a handy option whenever I need to move MBOX emails into another format.

GainTools MBOX Converter can quickly and effortlessly turn MBOX files into multiple file formats. This software exports single or multiple MBOX files to PST, EML, EMLX, MSG, and other formats. Its preview feature lets users check emails before conversion, and date‑range filtering helps to select only the items the user needs. The tool preserves folder hierarchy, attachments, metadata, and formatting to ensure no data loss. It runs on all modern Windows versions and works without installing any mail client. Once purchased, you get free lifetime updates and unlimited account support. Try the free demo to see how easily it works, which converts a few mbox files for free. It runs on any version of Windows OS.

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GainTools MBOX Converter transforms MBOX files into PST, EML, EMLX, MSG and other formats on Windows.

for: IT admins, developers, and users needing bulk email migration on Windows.
pricing: paid · free trial

works withWindows 11/10/8.1/8/7MBOXThunderbirdApple MailEudoraPSTEMLEMLXMSG

Key features

6 features of GainTools MBOX Converter

Multiple Output Formats — Exports MBOX to PST, EML, EMLX, MSG while preserving attachments and metadata.
Bulk Migration — Select and convert unlimited MBOX files in one operation.
Folder Hierarchy Preservation — Maintains original folder structure and email properties during conversion.
Preview & Filtering — Preview emails and filter by date range before conversion.
Separate PST per MBOX — Option to create individual PST files for each source MBOX.
Free Lifetime Updates — One purchase includes unlimited updates and 24/7 support.

Use cases

Migrate thousands of Thunderbird MBOX archives to Outlook PST for corporate email archiving.
Convert Apple Mail MBOX files to EML for cross-platform email sharing.
Batch export multiple client MBOX mailboxes into separate PST files for legal compliance.