While some companies are still using Lotus Notes into 2026, chances are that you will not be one of them. At least, migration from Lotus Notes to Microsoft Outlook is one of the most popular projects undertaken by businesses these days. And there’s a reason why it’s done so much – migrating all the data without losing any of it in the process.
Why This Migration Is More Complicated Than It Looks
The thing is that all data stored by Lotus Notes are kept in NSF format, which is totally incompatible with Outlook. Simply dragging and dropping will not help because the structure of NSF files differs from that of PST files. Trying to make a manual transfer will result in damaged emails and loss of data.
That is why you need a professional converter that knows how to deal with NSF and PST files.
What Actually Matters When Choosing a Conversion Tool
However, there are many other options on the market today, and all of them lack at least something. The things that matter include the following:
• No data loss – All emails, attachments and even fields should migrate safely and without a single omission.
• Folder structure preservation – You'll still be able to find any email in the same folder you left it in Notes when you switch to Outlook.
• Ability to preview content – Conversion isn't a one-sided process, and you can see what you're converting into something else.
• Support for multiple versions of Lotus Notes – From Lotus Notes 7 to Lotus Notes 11, nothing will stand between you and successful conversion.
• Alternative export formats – Besides PST, you can export your emails to PDF, EML, MBOX and MSG formats too.
• Easy-to-use interface – Not everybody involved in migrating emails from Notes knows something about IT technologies.
The Tool Worth Your Attention: Mailvita NSF Converter
After trying various solutions based on the above parameters, one kept prevailing – the Mailvita Converter for NSF, which transfers NSF files to PST and multiple formats without file size limits. It scores a respectable 4.9/5 among more than 360 user reviews, a claim that can't be disputed.
What makes it unique compared to other solutions is the sheer extent of migration. Most converters specialise in email migration. Mailvita, on the other hand, converts emails, contact details, calendar information, tasks and notes, and even attachments.
How to Use It — Step by Step
Download and install the program on your Windows PC (it supports Windows 7 through Windows 11). In addition, you will require Lotus Notes as well since that is where NSF files can be viewed natively.
Import your NSF files either one by one or multiple files simultaneously, depending on whether you have a bulk migration task at hand.
Preview your content. Take your time viewing your e-mails, contacts, and calendars in order to ensure everything is okay.
Select your preferred output file format – either PST file for MS Outlook use or EML, MBOX, PDF, MSG, HTML, and MHTML for other purposes.
Click on the Convert button. Your files will be processed swiftly and with no limit to their sizes.
Who Is This For?
Honestly, quite a range of people. Whether you're an IT admin rolling this out across an entire organisation, a solo professional switching laptops, or someone who's inherited a pile of old NSF files with no idea what's in them — this tool handles all of those situations without requiring you to be an expert.
Pricing is straightforward:
Edition | Price | Best For |
Professional | $69 | Personal use & home offices |
Premium | $299 | Businesses & multi-user environments |
It can also migrate directly to Office 365, Google Workspace, Hotmail, and AOL, so you're not forced to create a local PST file if that doesn't suit your workflow.
Bottom Line
Transitioning from Lotus Notes to Outlook is no longer a cause for concern. The use of the correct converter will guarantee that your data is intact, your folders are well-organised, and your time is not wasted trying to undo a bad migration.
Also, you get to try the product first via a free trial period.
