How to Import Lotus Notes Emails into Thunderbird

It has now become a trend to switch from one email client to another for competing in business world. Uncountable numbers of email programs are provided by many reputed organizations for ease. At the end of the day, it is all the choice of users, what to choose and for what. Likewise, lots of queries are there in internet market where users are asking solution to switch from Lotus Notes to Thunderbird. This blog is right away for those readers who are looking for workarounds to export NSF files to Mozilla Thunderbird. So, lets begin!

Lotus Notes : An Overview

Lotus Notes or IBM Notes is an application originated to facilitate a collection of collective works like to-do lists, instant messaging, calendars, address book management, schedule meetings, etc. A client-server environment is provided where an individual can work as email client. IBM Notes is known in market because of its strong security features. It creates numerous NSF files for storing database like mailbox.nsf to store mailboxes, bookmark.nsf to store bookmarks, etc. The address book of Lotus notes is saved in a predefined name i.e., names.nsf and contents associated with contacts are stored in usernames.nsf.  If in case migration is to be performed then, users have to use names.nsf and usernames.nsf files.

About Thunderbird

It is a free and open-source mailing platform operated on different operating systems like Windows, Mac, Linux, etc. It provides a systematic management of emails, news feeds, newsgroups originated by Mozilla. The application supports EML file format and save its every email with .eml file format. Besides Thunderbird, EML format is supported by various other email clients.

Need of Lotus Notes NSF to Thunderbird Migration

It is the choice of a person that which email client is comfortable and satisfying for him. No one can restrict users from switching, if they want something new and better than previous mailing environment for working. One of the most common reasons to migrate from IBM Notes to Mozilla Thunderbird is the change of work arena. If you are working with Lotus Notes in your office and need to take some of your emails to home machine where you have Thunderbird then you need to convert the emails from Lotus Notes into EML format; which is compatible for Thunderbird. Another reason might be that users want to create backup of Lotus Notes NSF file in EML file format so that it can be easily used within various emailing client which supports EML format; including Thunderbird.

Switch From Lotus Notes to Thunderbird : Challenges Faced

Many queries strike in mind when a IBM Domino user thinks of switching from one email client to another like Thunderbird. It is so because there are a few limitations of Lotus Notes like server dependent environment, limited features, etc. Following are the difficulties (described in form of queries) faced while importing Lotus Notes into Thunderbird:

  • Encountering one or the other error messages while opening NSF file in Thunderbird
  • Unable to open names.nsf file in Mozilla Thunderbird
  • No manual approach to convert NSF file to EML

Migrate from IBM Notes to Mozilla Thunderbird in Hassle free Manner

Till today’s date, there are many versions of IBM Notes but, none of them provide feature of conversion. It is impossible to import Lotus Notes into Thunderbird manually because there is no add-ons or commands available by which users can convert NSF file to EML. Now it is the real challenge of the problem! To overcome all the issues, the only approach left is to use NSF to EML converter. The software is developed to combat all the difficulties faced while migrate the emails from Lotus Notes to Thunderbird. There are many benefits provided by this converter and few of them are mentioned below:

  • Provides option to export emails from NSF file to EML altogether
  • Migrate emails with all respective attachments and technical attributes
  • Ensures maintenance of data integrity and folder hierarchy throughout
  • Creates EML file for all the Lotus Notes emails which you can further import within Thunderbird.


How to import Lotus Notes emails into Thunderbird – will remain be a question for end users who does not want to utilize third party tools. It is so because manually it is not at all possible to convert NSF file to EML. The only available approach left is NSF to EML Wizard that is designed for a rapid migration from Lotus Notes to Thunderbird. Users can go for trial versions and if find it suitable for work then, can purchase it for a complete and successful migration.


Article Author Details

Jamie Kaler