Reliable solution for email conversion use the WholeClear OST to NSF Converter is an easy and secure software that helps you convert Outlook OST files into NSF format for use in IBM Lotus Notes. It supports all types of OST files, including those from Exchange, IMAP, and Office 365 accounts. The software keeps all your email data safe, including attachments, formatting, and folder structure. You don’t need Outlook installed to run the tool, and it works well on all Windows versions. It’s ideal for professionals and organizations converting from Outlook to Lotus Notes. A free trial version is also available to check the performance before purchasing. It supports all MS Outlook versions 2021,2019,2016, etc.