If you want to perform the conversion from IBM Notes to Outlook PST format easily, I would like to suggest all users use, MailsDaddy NSF to PST Converter. The software swiftly exports complete email items, like- contacts, calendars, tasks, journals, notes, email properties, and more. Using this tool, users can convert NSF files in MBOX, RTF, PST, MSG, EML, and HTML, Office 365, Live Exchange Server formats. 

Features of This Solution:-
Export NSF to PST, EML, MSG, MBOX, RTF, Office 365, Live Exchange Server, and others.
The converted PST file can be easily imported in Microsoft Outlook 2016, 2013, 2010, and 2007, etc.
Helpful to display the preview of overall NSF file database in the software preview panel.
Keep safe the complete folder structure, text formatting, email properties, and HTML formatting.
Enables users to consolidate all mailboxes into a single PST files without any alteration.