Four Methods to Export IBM Lotus Notes to Office 365 / Microsoft 365

Admin | email migration How to's Software Technology | 5 minutes read | Last updated on February 8th, 2023,

How to Migrate IBM Lotus Notes to Office 365?

If you want to migrate data from Lotus Notes to Office 365, then you should go with Lotus Notes Converter Tool or (MONTI) Microsoft Online Inspector. In this blog, we are going to discuss four different methods that help you in Lotus Notes NSF to Office 365 Migration.

Recently Microsoft Office 365 became so much popular because of its several profits more of that it offers platforms like IBM Lotus Notes, which is also known as now HCL Note. Whether it is small and large businesses are now switching to Office 365 from other email clients like IBM Lotus Notes. And this is because Lotus Notes is quite difficult to manage and also lacks so many features.

Microsoft Office 365 provides an environment where you can easily cooperate with your team members, customers. Users can work and access from anywhere, as Microsoft Office 365 is a cloud-based application. All and all Office 365 easily handles mails, communication, and perform other tasks better than any other application. Migrating HCL Notes / IBM Lotus Notes NSF file to Office 365 needs proper technical skills and information to execute data migration properly; to evade data loss and minimize downtime.

In this blog, we are going to cover four methods that help you to migrate Lotus Notes to Office 365 cloud application. Find the one that you find suitable for your need.

Process for IBM Lotus Notes to Office 365 Migration

Method 1 – Export Lotus Notes to Office 365 cloud using MONTI

MONTI, Microsoft Online Notes Inspector was designed with the idea to assist users in collecting data in regards to their IBM Lotus Notes Domino. MONTI was developed as an IBM Lotus Notes program that allows users to collect data from their current messaging expertise. MONTI has an 86 page manual that provides guidance for Lotus Notes to Office 365 migration. Download MONTI from here.

1 – After download MONTI, double click on MONTI.exe and click the browse button to pick a save location.

2 – Then you need to Unzip the file. This will extract the MONTI document into the selected location.

3 – Go to the folder location and open Office 365 Deployment Tools\MONTI\Docs folder

4 – Then open MONTI guide and read the guide and learn how to perform Lotus Notes to Office 365 Migration.

This process is quite difficult and not everybody can execute this process. This method will take a lot of time to understand and execution and you might end up with data loss and making errors. But if you still want to try this method then read the MONTI document very carefully and understand the step by step process before proceeding.

Method 2 – Lotus Notes to Office 365 Migration with IMAP

You can also go with another method. IMAP is another way to migrate Lotus Notes to Office 365. You can apply this manual process when you want to migrate your business communication to Microsoft Office 365.

First step – Take Backup of IBM Lotus Notes data NSF file

Creating Backup of Lotus Notes NSF Files is required before the migration process to avoid any chances of data loss and any error. To create a backup of all existing Lotus Notes mailbox NSF files. Create IBM Lotus Notes NSF file archives for backup.

Second Step – Make a new mailbox

After taking backup, then you need to make new mailboxes for every single user having an existing Lotus Notes user profile.

Third Step – Enable the IMAP TCP/IP Port

1 – Open IBM Notes Domino Administrator

2 – Click on the configuration setting

3 – Now open the server document that runs IMAP.

4 – Sequentially click on the tab Internet Ports – Mail

5 – Enable IMAP TCP/IP port. To do so, alter the TCP/IP port value status to “Enabled” in the (IMAP) Mail (By default, the clients of IMAP get linked to TCP/IP port number 143 on the IBM Domino server).

6 – Now, Save, and Exit.

Fourth Step – Synchronize with IMAP Connector

You can use the IMAP Connector to connect IBM Lotus Notes emails to Office 365 cloud. Once you complete all the four steps, exporting Lotus Notes to Office 365 environment becomes possible. However, this technique including IMAP Connector is not without its restrictions.

Limitations of IMAP Based Migration

IMAP Connector has the following Limitations:

  • If the IBM Lotus Notes clients are in the disable states, the connector will not permit IMAP Connection.
  • If the Notes has proxy and firewall, then it will not connect with the internet.
  • IMAP Connector move only 1 GB size emails
  • IMAP Connector limit to move of calendar
  • Moving with the IMAP protocol will migrate only online data to Microsoft Office 365.
  • IMAP Connector involves multiple filters that are complex and costly.

Method 3: Migrate Lotus Notes to Office 365 using Lotus Notes Converter Tool

The above mention methods explained their limits and cannot be performed by non-technical users. The above describe methods need technical sound knowledge to perform IBM Lotus Notes to Office 365 successfully.

If you are looking for a simple, quick, and complete migration process that lets you migrate Lotus Notes emails, notes, calendars, tasks, contacts, etc. to Office 365, then Lotus Notes Converter is the highly recommended tool. It will help you to migrate single and multiple mailboxes from Lotus Notes to Office 365 cloud account.

It has no limitation of file size. You can move multiple NSF files from Lotus Notes to Microsoft Office 365. The IBM Lotus Notes Migration software supports all IBM Lotus Notes 10.0.1, 9.0.1, 9.0, 8.5, 8.0.2, 7.0, 6.5 and 6.0 editions.

Method 4: Export Lotus Notes to Office 365 Cloud using CSV File

With this additional process, you can import Lotus Notes to Office 365 with a CSV file. With this process, you can export emails of Lotus Notes in CSV format and after that, you can import them into Office 365. This process only suitable for one or two Lotus Notes files.

1 – Open Lotus Notes and then open Lotus Notes file that you want to Office 365

2 – Go to the File tab and then click on Export option

3 – Browse the location where you would like to save CSV file

4 – From save file type option select “Comma Separated Value”

5 – Then simply Export

6 – Next CSV Export Windows will appear where you can choose documents you need to export

And this process will convert NSF file in CSV file format and later you can import them to Office 365 user account.


This blog will help you to perform Lotus Notes to Office 365 Migration using different methods which are explained above.

All the Manual processes that are mention in this blog help you to perform Lotus Notes Migrate to Office 365, there are multiple limitations and complication that you may face during the migration process. And it is also possible that these processes only let you Export Emails from Lotus Notes to Office 365, maybe you cannot be able to export multiple mailboxes, calendars, contacts, and other data. So, to avoid complications, errors, limitations, and issues, you might use the Lotus Notes Converter.