I will suggest you to use Outlook to Notes Software to convert Outlook (.pst) to Lotus Notes (.nsf). PST to NSF converter software is easy & quick to Convert Outlook to Lotus Notes.
I have used this tool a week ago and able to convert all my MS Outlook email folders (Inbox, Sent Items, Drafts, Outbox, Deleted Items), email properties (to, cc, bcc, attachments, sent & received dates), calendar, tasks, contacts to Lotus Notes. You can Download the software from the following site: www.outlooktolotusnotes.com, www.psttonsf.org
PST to NSF rocks!!!! Hope you will also get the best results. All the BEST!!!!!
Computer Administration Head
Technofy Pvt. Ltd.