NSF to MBOX Converter



NSF to MBOX Converter Tool

An expert solution for converting multiple IBM Lotus Notes database file format NSF to MBOX format. This .mbox is compatible with many email clients including Thunderbird, Apple Mail, Eudora etc. Use this tool to export Lotus Notes email to Thunderbird file format.

  • Bulk Migrate Multiple Lotus Notes NSF Files to MBOX Format
  • Export Data from IBM Domino Server Mailboxes to MBOX File
  • Perform Efficient Email Folder Mapping Between IBM Accounts
  • Lotus Notes is Essential for Migration of IBM Notes to MBOX
  • Lotus Notes Connection with Domino Server Environment is Not Needed
  • Supports All Versions of Lotus Notes 9.0.1, 8.5 and Below Versions
  • Compatible with Windows 10, 8, 7, Windows Server 2016, 2012 R2, 2008

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NSF to MBOX Converter – Overview

An Overview of NSF to MBOX Converter

Lotus Notes is email client developed by IBM for sending and receiving emails. It stores the mailbox data in a database file called Notes Storage Facility. It saves all the emails with attachments in this NSF file. Domino Server is a mail server used for IBM Notes accounts. It is used to store mailbox data remotely. Lotus Notes is commonly used as a communication and business collaboration software by enterprises. MBOX is a file format used by many email clients. It is used to store multiple emails in a single .mbox file. It is data storage file supported by Thunderbird, Mac Mail, Eudora, Spice Bird, Opera Mail, Netscape, Entourage etc.

Reasons to Convert Lotus Notes to MBOX File Format

here are many reasons for converting an IBM Notes mailbox to a more compatible MBOX file format. These causes may be enough to move mailbox data from a Notes .nsf file to a .mbox file. Here are some of the reasons to convert NSF file to MBOX format:

  • MBOX format is very popular and is compatible with many email clients.
  • The .mbox file can be taken across platforms in Windows, Mac or Linux systems.
  • Lotus Notes maintenance is costly for home users.
  • Training and knowledge are needed to work with IBM emailing client.
  • A lot of efforts are needed to manage emails in the highly secure IBM Notes client.

For these reasons, it has become evident that emails need to be moved from Lotus Notes database to a MBOX file. The NSF to MBOX Converter is a safe and secure way to transfer mailbox data within an NSF file to a .mbox file. It is an innovative solution that can move data within multiple .nsf files to separate .mbox files. It is compatible with all versions of Windows 10 and below.

Important Features of Lotus Notes to MBOX Converter

Some Highlighted Features to Convert NSF to MBOX Format

Lotus Notes to Thunderbird MBOX

Export Multiple NSF Files to MBOX

Use the NSF to MBOX Converter to migrate data from multiple Lotus Notes database file to MBOX format. Import a single .nsf file into the tool by using the Add File(s) option. This option can also be used to upload multiple NSF files one at a time. Use the Add Folder option to upload multiple .nsf files into the tool.

Move Domino Mailboxes to .mbox

Move Domino Mailboxes to .mbox

Complete Domino Server mailbox emails and email folders can be migrated to .mbox file using the tool. All emails with attachments are moved to MBOX format without any data loss. Connectivity between Lotus Notes and Domino Server is essential to perform this migration. IP address and password to server accounts are also needed.

Customize Email Folders Mapping

Customize Email Folders Mapping

Perform folder to folder mapping between .nsf and .mbox files. Customize email folders by mapping them across the two file formats. The NSF MBOX Converter to customises emails further by removing any password protection from them before migration. Detect and replace the canonical sender name to SMTP format using advanced options of the tool.

Apply Date Filter

Apply Date Filter to NSF Email Files

There is a provision in the tool to apply a date based filter to emails to perform a selective migration. A date range can be set for the received date on emails to simplify conversion. This way a lot of time can be saved and prevent any needless conversion of data. The tool is compatible with all versions of Lotus Notes 9.0.1 and below.

Optional Data Integrity Maintenance

Optional Data Integrity Maintenance

There is an option in the Lotus Notes MBOX Export tool to forego any folder hierarchy. This can save time during migration of multiple mailboxes. By default all the email properties and folder structure are retained by the tool. Email properties like header information and email formatting are maintained by the tool. Also, doc links and attachments are preserved during transfer.

View Live Conversion Status Report

View Live Conversion Status Report

A live migration report is shown to the user during the time of the transfer. This report contains details regarding the export process. The information includes current folder being transferred, folder count, email count and the path where the migrated file is saved. These give a general idea of the migration process and its progress.

NSF to MBOX Converter Tool System Requirement

Software Download

Size: 15.4 MB

Version: 4.0

MD5: 028d619f528b07a2e820ba033ef77952

Trial Limitations

Demo of Lotus Notes to MBOX Converter only convert 25 emails per folder in Lotus Notes NSF format to MBOX.

System Specifications

Hard Disk Space
100 MB of free hard disk space required

4 GB of RAM

Minimum 2.4 GHz Processor

Supported Editions

Windows 10, 8, 7 (32 bit or 64 bit) and Windows Server 2016, 2012 R2, 2008.


  • Microsoft .NET framework 4.5 or above should be installed.
  • If you are using Windows 10, 8, 7 (32 bit or 64 bit) & Windows Server 2016, 2012 R2, 2008, then please launch this tool as "Run as Administrator".
  • Lotus Notes should be installed.
  • Make sure your Notes is configured as stand alone (does not look for Domino)


Q. Is your Antivirus blocking the software export process?

A. Please disable Anti-virus temporarily / Allow access (Whitelist) from Antivirus settings for proper working of the software.

Q. Unable to Create Output in destination?

A. Please avoid NAS, SAN, Network or Shared Drive. Source file should be on the migration machine to perform successful conversion.

Electronic Delivery

The delivery of the product is automated, You will receive an email containing both the link to download the product and the activation key within few minutes after payment confirmation.

Features Comparison

Get an Overview of NSF to MBOX Converter Features – Free and Full Version

Features FREE Version FULL Version
Add NSF File(s) & Folder
Export Encrypted Emails
Email Address Translation
Maintain Folder Hierarchy
Windows 10, 8, 7 (32 bit or 64 bit) and Windows Server 2016, 2012 R2, 2008
Convert NSF to MBOX 25 Emails/Folder All Emails
Cost FREE $99

Frequently Asked Questions

Listed Commonly Asked Questions and Answers

No, the tool can only function with Windows operating system. It is compatible with all versions of Windows 10 and below.
No, an email client that supports .mbox files in not needed to perform the conversion between IBM Notes to MBOX format.
There is no limitation on the NSF file size that can be uploaded into the tool. Import as many files of any size to migrate from Lotus Notes to MBOX format.
Lotus Notes client must be installed on the system where the migration is taking place. This Notes application must be connected to Domino Server environment to proceed with the conversion. Server IP address and password are also needed to perform the transition of mailbox data.

What Customers Are Saying

Verified Purchase Reviews – NSF to MBOX Converter Tool

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