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Reliable option to switch NSF into Mozilla Thunderbird MBOX file?

Migrate NSF into Mozilla Thunderbird MBOX file


Lotus Notes is an enterprise email program. It uses NSF file to store emails, contacts, calendars, notes, etc. But this email client is found complex by few users. Because of complicacy and lack of flexibility, organizations are migrating from Lotus Notes to other email clients like Mozilla Thunderbird, Mac Mail, etc.


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On the other hand, Mozilla Thunderbird is a free and popular email client available for Windows, Mac, and Linux operating systems. Thunderbird save its emails in MBOX file format.


Users have multiple reasons for switching from Lotus Notes to Mozilla Thunderbird. In this post, we will discuss the reasons behind switching from Lotus Notes NSF into Mozilla Thunderbird MBOX file. If you need a reliable option to perform NSF to Thunderbird MBOX conversion, then this post will be helpful for you.

Why switch from Lotus Notes to Mozilla Thunderbird MBOX file?

  • Lotus Notes is an expensive email client whereas Thunderbird is friendly and free to use.
  • NSF format is supported by Lotus Notes email client only however MBOX file format is a widely used format used by Thunderbird, Mac Mail, Entourage, and 20+ other email clients.

Because of these reasons, many organizations are migrating from Lotus Notes to Mozilla Thunderbird MBOX file format. However, you can’t directly access NSF mailbox in Thunderbird email client. Therefore, to access Lotus Notes mailboxes into Thunderbird, the conversion of NSF file to Thunderbird MBOX file format is required.

Methods to perform conversion of NSF file into Mozilla Thunderbird MBOX file


There is no manual way to convert Lotus Notes NSF file into Thunderbird MBOX file format. So, no need to waste time in searching manual solution to convert NSF file to Thunderbird MBOX file format. However, we provide a reliable solution i.e. GainTools NSF to MBOX Converter. It successfully convert Lotus Notes NSF all data items into MBOX file format. It is one of the tested and authentic tools for safe and smart conversion of NSF mailboxes into Thunderbird MBOX file format. You can use it smartly on all versions of Windows operating systems. Some of the authentic features of Lotus Notes to Thunderbird Converter are

  • Provide safe and secure conversion of Lotus Notes NSF file into Thunderbird MBOX file
  • Export all attachments with NSF emails into Mozilla Thunderbird MBOX file
  • Preserve original folder structure after the migration
  • Smart NSF file preview before the conversion
  • Offer selective items conversion from Lotus Notes NSF file
  • NSF file exported from all editions of Lotus Notes are supported
  • Smartly convert any size NSF file into Thunderbird MBOX file
  • Maintain email headers and email formatting throughout the conversion
  • Offer free version for everyone to analyze the software functions
  • Easily open Lotus Notes file into Thunderbird, and other MBOX supported email clients

Open NSF file into Mozilla Thunderbird using Lotus Notes to Thunderbird Converter


There are only few easy steps for the conversion of Lotus Notes mailbox items into Thunderbird MBOX file format using automated solution. Below is the step by step guide to use the software –

  • Step 1. Install and Open Lotus Notes NSF to Thunderbird MBOX Converter Software.
download nsf converter
  • Step 2. Browse NSF file from your system whom you want to open in Thunderbird.
nsf file browse
  • Step 3. Check quick preview of NSF database. You can mark desired items to export from NSF file.
view nsf
  • Step 4. Select MBOX format and set a location for saving the resultant MBOX file.
choose mbox file
  • Step 5. Press the Convert Now button and this will export all emails from NSF to Thunderbird MBOX file format.
press convert now

Final Words


With this article, we have discussed about Lotus Notes, Thunderbird, reasons to switch from Lotus Notes NSF to Mozilla Thunderbird MBOX, and a trusted solution to perform the conversion. As manual solutions are not safe to use hence we have not discussed about them. We recommend Lotus Notes to Thunderbird MBOX Converter which is friendly to use and can be easily handled without any trouble. You can download the free copy of the software and understand it before getting license keys.