Merge MBOX Files
MBOX Merger Software to Combine MBOX Files
MBOX Merger combines many MBOX files into one. Add your files or a folder, set a date filter and save the merged archive to a fresh or current MBOX file.
- Merge into a new or existing file
- Date, From and To filters
- Attachments and folders kept
- Windows and Mac editions
- Free DemoTest before you buy
- 30 Day RefundDemo test comes first
- Card or PayPalHosted store checkout
- Fast License KeySent by email
- 24x7 SupportChat and email
1Is this my case?
Which Cases Need an MBOX Merger?
Find your case below. RecoveryTools software joins your MBOX files and keeps your mail intact.
- Mail Sits in Many FilesYour archive is spread over MBOX files from several years.
- Clients Were SwitchedYou used Thunderbird, Apple Mail and others and want one archive.
- Google Takeout PiecesYour Takeout export arrived as many MBOX files.
- Only One Period MattersYou need mail from a date range in the merged file.
- Backups Need One HomeOld backups should join your current MBOX file.
- Proof Needs a RecordYou must save a report of what went into the merge.
Many Files in One
Join MBOX files into a single archive.
Date Filter
Merge only the period you need.
Attachments Kept
Every mail keeps its files.
MBOX Merger works with no Thunderbird or other email client on your computer.
Free demo mode covers 25 mails from every MBOX file.
2What changes?
What Changes After the Recovery?
Before
- Mail scattered over many files
- Archives from different clients
- Hours of copying mail by hand
After
- One MBOX file for your archive
- Mail filtered by date and sender
- Merge report saved in CSV
3What can it do?
Which Features Come With MBOX Merger?
Add the file, set your clues and recover the password from one window.
Merge Many MBOX Files
Add single files or full folders with no limit on file count.
Data Kept
Keep metadata, attachments and the folder hierarchy.
Date Filter
Merge only the mail from the date span you set.
Sender and Recipient Filters
Select mail by sender or recipient in the Windows edition.
New or Existing File
Save to a fresh MBOX or add to one you already have.
Auto Split Above 10 GB
Divide the output when it grows past 10 GB.
Many Mail Clients
Open files from Thunderbird, Apple Mail, Google Takeout and about 15 other clients.
Merge Report
Save a CSV report after the merge.
Destination Control
Select the folder for your merged file.
4Is it easy?
How to Use MBOX Merger in 4 Steps
Test the software in the free demo. Buy the license when you want the full result.
- 1Download
Install the Demo
Download the installer and install it on your Windows or Mac computer.
- 2Add
Add MBOX Files
Click Add File or Add Folder and select your MBOX files.
- 3Filter
Set Filters and Target
Add a date filter and select your target MBOX file.
- 4Merge
Start the Merge
Select the destination path and complete the merge.
Screenshots of every step sit in the MBOX Merger guide.
5What will I see?
Which Screens Does the Software Show?
Follow the path from the first screen to the finished result.
Add Your MBOX Files
Load files or a folder into the software.
Set Your Merge Options
Choose filters and a new or existing file.
Check the Result
Wait for the message that the merge is done.
6Demo or full?
Free Demo vs Full Version
See where the free demo stops and what a license adds.
| Feature | Free Demo | Full Version |
|---|---|---|
| Merge many MBOX files | Yes | Yes |
| Date and sender filters | Yes | Yes |
| CSV merge report | Yes | Yes |
| Mails merged per file | 25 | All mails |
| Price | Free | From $39 |
7Will it fit my system?
System Requirements for MBOX Merger
| Product Version | 3.0 for Windows and 3.0 for Mac |
|---|---|
| Download Size | 123 MB for Windows and 28.9 MB for Mac |
| Product Type | Desktop software that merges MBOX files |
| Input Files | MBOX files from Thunderbird, Apple Mail, Google Takeout and about 15 other clients |
| Output | One new or existing MBOX file, split above 10 GB |
| Filters | Date range plus From and To on Windows |
| Windows | Windows 11 and 10 in 64 bit |
| Mac | macOS 11 and later on Intel and Apple Silicon |
| RAM and Disk Space | 4 GB RAM with 100 MB of free space |
| Pre Requisite | Microsoft .NET Framework 4.5 on Windows. US region and English language on Mac |
| Demo Limit | Merges 25 mails of a file |
8What is the price?
How Much Does MBOX Merger Cost?
Choose the license by the number of computers. Prices are in US dollars.
1 Computer
$39
- Home and private use
- 1 year of free updates
- Unlimited 24x7 support
Up to 100 Computers
$149
- One location in one country
- 1 year of free updates
- Unlimited 24x7 support
Up to 500 Computers
$499
- Offices in many places
- 1 year of free updates
- Unlimited 24x7 support
Mac edition licenses cost the same $39, $149 and $499. Buy the Mac edition license or download the Mac edition demo. See more savings on the RecoveryTools offers page.
9Is it safe?
Can You Trust the Software With Your Mail Archive?
See Results First
Test the free demo on copies of your MBOX files and check the merged file before you pay.
In Business Since 2007
RecoveryTools stands on a company that began in 2007 and now helps users in over 100 countries. Find more about RecoveryTools.
ISO Certified
Standards ISO 9001:2015 for quality and ISO/IEC 27001:2013 for information security back the company. See the awards and certifications page.
Terms in Plain Sight
Refund, privacy and usage terms are public before you pay. See the refund policy, privacy policy and terms of use.
10Need a hand?
Where to Get Help With Your MBOX Merge
Support engineers answer questions before and after you buy. Visit the RecoveryTools support center for phone numbers and more ways to get help.
Live Chat
Talk to an expert on live chat at any hour.
Email Support
Email support@systoolsgroup.com with your MBOX file details and the error message.
Remote Session
An expert connects to your computer and solves a hard case for you.
Step by Step Guide
Follow the user guide for the add, filter and merge screens.
11Still have a question?
Questions About Merging MBOX Files
Can I merge many MBOX files into one?
Yes. Click Add File or Add Folder, select the files and merge them into one archive.
Do attachments and folders stay?
Yes. Metadata, attachments and the folder hierarchy stay in the merged file.
Can I merge only some dates?
Yes. Set a date filter. Windows edition also has From and To filters.
Can I add to an existing MBOX file?
Yes. Select an existing file as the destination.
What happens when the output grows huge?
Software splits the output automatically when the data passes 10 GB.
Which mail clients create the files?
Files from Thunderbird, Apple Mail, Google Takeout and about 15 other clients work.
Is there a limit on the number of files?
No. Add as many files or folders as you need.
Do I need Thunderbird installed?
No. Software works with no email client.
Does the software save a report?
Yes. Software saves a merge report in CSV format.
What does the free demo do?
Free demo mode merges 25 mails from every file. Full version merges every mail.
Is there a Mac edition?
Yes. Mac edition 3.0 works on macOS 11 and later on Intel and Apple Silicon. Set the system region to United States and the language to English. Get the Mac edition demo or the Mac edition license.
Which Windows versions work?
Windows 11 and 10 in 64 bit work. Install Microsoft .NET Framework 4.5 first.
How much does MBOX Merger cost?
Personal costs $39 for 1 computer. Business costs $149 for up to 100 computers. Enterprise costs $499 for up to 500 computers. Mac edition licenses cost the same.
Can I get a refund?
Yes. Refund requests are accepted for 30 days under the RecoveryTools refund policy. Software bought without a demo evaluation does not qualify. Email a signed Letter of Destruction to sales@recovery-tools.org. Bundle purchases cannot be refunded.
Merge Your MBOX Files With the Free Demo
Download the free demo, merge a sample of your mail and buy the license when you want every mail.