IMAP Migration

This blog will emphasize the best practices that needs to be followed for IMAP migration from Lotus Notes to Office 365. Users can avail cost-effective solutions, which is revealed here in the write-up to meet the challenging data migration needs. 

For a precise understanding, let’s check out the user query given below: 

“A couple of days back, my organization has decided to migrate all our Lotus Notes NSF data to Office 365. Now, the major hurdle is that as there are more than 67+ employees in our firm, the manual method i.e., IMAP migration from Lotus Notes to Office 365 will not be a feasible solution. Hence, we are searching for some instant yet trustworthy solution to perform swift data migration. Moreover, we are looking for a solution, which will not hamper on on-going work by any means. Please suggest some reliable approaches to do the same.” 

Microsoft Office 365 is an efficient cloud-based productivity suite, which renders numerous robust features. The best part is that one can avail wide-range of business services within one single roof. This includes MS Office suites, SaaS-based platforms, etc. On the contrary, HCL Notes is not much worthwhile email application due to its outdated features, complex interface and considering various other shortcomings. As a result, it is pretty obvious that Lotus Notes users will turn their attention to avail some efficient platform like MS Office 365. Through this blog, we are going to shed light on the proven technique to perform an effortless data migration of Lotus Notes to Office 365. 

IMAP Migration from Lotus Notes to Office 365 – A Top-Notch Solution 

When in comparison with the failures associated with the manual approach, it is best suggested to avail effective yet proven third-party software. Using which, one can overcome the manual limitations. After undergoing thorough research and testing, it is proven that SysTools Lotus Notes to Office 365 Migration Tool is the result-driven software. The reason being the utility renders results with 100% precision.

By availing this software, one can easily migrate emails, contacts and calendar mailbox items to the destination Office 365 account. Uses can map Lotus Notes mailboxes with the desired Office 365 profile manually or automatically via “Fetch Users” or “Import CSV” options. One can perform selective data migration using “Date filter” option. Additionally, it allows to migrate the desired NSF mailbox items like emails, contacts and calendars to Office 365, which can be utilized from the Workload section. Altogether, this all-rounder utility is the perfect alternative over the cumbersome manual method. 

Manual Method to Transfer Lotus Notes Mailboxes to MS Office 365

The below-mentioned are the steps for IMAP migration from Lotus Notes to Office 365. However, it is loaded with several shortcomings such as complicated steps, NSF files of more than 1 GB size are not migrated, IMAP connector fails to migrate Lotus Notes calendar mailbox, must be technically sound to implement the steps, etc. 

#1: Create Backup

It is a mandatory step to take backup of the Lotus Notes NSF files before initiating the procedure. As there is a high risk of data loss issue with this approach, therefore it is important to take backup of the files. 

#2: Create New Mailboxes

Users need to create new mailboxes for each Lotus Notes mailboxes for IMAP migration from Lotus Notes to Office 365. 

#3: Enable IMAP

  • At first, you need to select Domino Administration>> Configuration>> launch server document to run IMAP configuration. 
  • Then, enable the default TCP/IP port and change the port values
  • After that, set as Enable in the mentioned fields, which is placed at right of Mail IMAP column.
  • Finally, click on the Save button>> Close>> Exit button. 

#4: Connect to IMAP connector

Make sure to synchronize the HCL Notes mailboxes and Office 365 using IMAP connector.

Concluding Thoughts

To swiftly perform IMAP migration from Lotus Notes to Office 365, one can avail any of the aforesaid solutions. We have highlighted both the manual and automated solutions to do the same. Based on the requirement, users can make use of the best technique, which suites their needs. 

By Anurag Rathod

Anurag Rathod is an Editor of, who is passionate for app-based startup solutions and on-demand business ideas. He believes in spreading tech trends. He is an avid reader and loves thinking out of the box to promote new technologies.