How to Convert MBOX into Lotus Notes – Step-by-Step Guide

In the modern world, email are considered to be the most secure part of our communication. There are various email clients available like Thunderbird, Apple Mail, and many more that provide these email services to us. These email client the used different types of format for their mailboxes to store email. Different types of file formats are MBOX, PST, NSF, and other also. MBOX is the most common format that used by most email clients. But, other email clients also exist like Lotus Notes also known as IBM Notes uses NSF format by default. In this blog, we discuss the method to convert MBOX into Lotus Notes and what are the reasons for this transition.

Let’s talk about the NSF file format it is file with .nsf (Notes Storage Facility) extension used by the IBM Notes/Lotus Notes. It is a non-relational database file define a schema to store the file information like email messages, documents, appointments, and other details. Whereas, MBOX is very generic format used by various email client like Thunderbird, Apple Mail, and other. But the structure they is different so you can handle these MBOX file with help of an MBOX Converter.

Reasons for Save MBOX as NSF File

There are various reasons to export MBOX files into NSF file. That we discuss in this section.

  • The security features of NSF is better than MBOX and have extra security layers. Which decreases the file corruption.
  • Google Takeout also exports their data in MBOX format to it necessary to IBM Notes/Lotus Notes users to convert MBOX into Lotus Notes.
  • Many email client use the MBOX but they use different type of this format which create the compatibility issues with MBOX file.
  • When the Lotus Notes user gets the MBOX file from the third person and wants to open the file.
  • Due to professional reasons when any user switch to Lotus Notes and want their old email which are in MBOX format.

Professional Method to Convert MBOX into Lotus Notes

As we know, there is no direct method to open an MBOX file into NSF format. Because Lotus Notes/IBM Notes uses a different file format in which MBOX file format is not compatible. We perform a conversion process without losing our important data.

In this method, we use the expert automated tool to perform this change. This method is consider to best method because there is no risk of file corruption and data loss. Here, we use SysTools MBOX to NSF Converter. Which is the export tool used by many professional because of its safe and secure features.

Steps to use this tool

  • First of all download & install the tool in your system.
  • Click on the Add Folder option at the top left corner. A new popup is open > Select the MBOX from “Select an Email Application”.
  • Choose “Select file(s)/folder from file System” from the options. Tap the Next Button to proceed.
  • Browse the location of the MBOX file and click on the proceed button to add the folder to this tool. Select the desired email from the dashboard.
  • Go to the Export Button > Select the NSF from the Export Type options. Give the destination location where you want to save the resultant Lotus file.
  • Hit the Export button to initiate the process.

NOTE :- Advanced settings are also available like a Date filter if you want to a particular mail between particular dates check if you want.

Features of this Tool for convert MBOX into Lotus Notes

  • Able to convert multiple files MBOX file easily to NSF format efficiently. Automatically scan data from various MBOX format-supported email clients.
  • Give various export Options to user HTML, and EML and you can change them into ready-to-print documents with the help of MBOX to PDF Converter. Provide various preview options to the user.
  • Preserve the data integrity, and maintained the folder structure during the conversion process.
  • Users can merge the multiple MBOX file into a single NSF file or split the resultant file according to size.

Save MBOX as NSF File – With Online Solution

As we know till now, there is no direct method method to convert MBOX into Lotus Notes. If you find any online free method then don’t go there because it may corrupt your file and they surely steal your information for your MBOX file. If your file contains crucial financial or business information then it would harm you more. So, don’t go there for your safety and security. There is a famous quote in the online world “If any product is free then you are the product”


In this blog, we discuss how to convert MBOX into Lotus Notes with expert method and online method. Free methods that are available online have serious concerns related to user privacy and data security. So, it is better to use automated professional method which is considered a fast & secure way to save MBOX as NSF file within a few clicks

If you have any questions, please ask below!