If you are planning to import your orphan Outlook MSG files into Lotus Notes then MSG to NSF converter can help in it. Using this tool you can convert any number of MSG files in batch.
With MSG to NSF converter you can convert multiple MS Outlook MSG files into Lotus Notes NSF file format keeping the folder structure intact. MSG to NSF converter maintains the email formatting and embed attachments while saving emails into NSF format.
Software can convert any size of MSG files into NSF format. There is no file size limitation but you need have Lotus Notes installed and configured on your machine to perform the conversion.