How to convert lotus notes .nsf to outlook .pst?

All replies

  • Hi, you should be able to do the conversion anywhere using a local mercury email server. If the IMAP port is blocked by your firewall at work, you may want to take the nsf file home and do it there. I update the article yesterday to clarify a few things

    Tuesday, December 02, 2008 6:37 PM
  • I just went through a NSF to PST conversion, Domino 7 to Exchange 03, at a company for 25 people. The best (not easiest) way I found was the MS Outlook Connector for Domino.

    What I did was get everyone's ID files, and open Lotus Notes first, import their ID file, log in as them, then tie the connector in. Then open up in Outlook (using the MS Connector) all their mail would appear. After I checked all the email, contacts and calendars were there, I exported all information to a PST file.

    Then I'd go onto the users computer, setup there Exchange account in Outlook, and replace (or import) the PST with the one I had just exported, and it automatically populates the MS Exchange server with those messages.   We tried the MS Server tools to export Notes to Exchange but the calendars would not export correctly at all. So yes, this is may not be the best way with as its time consuming as alot of time goes to exporting/importing. But without any additional cost to IT (were small business) we saved a bundle and it worked 100%.

    Hope this helps anyone else out there.

    Wednesday, January 14, 2009 6:53 PM
  • Your link is a scam,   .org for a company.....

    Wednesday, September 11, 2013 2:47 PM
  • Works fine. Also gives you the option to do other things with the mails.
    Thursday, May 22, 2014 2:44 PM
  • Sorry there are no free tools available for migration, only third party paid application are available for migrating Lotus Notes nsf files to Outlook PST files which you have to use at your own risk
    Wednesday, December 03, 2014 2:03 PM
  • Thank you Sophia for the suggestions. :)
    Saturday, February 14, 2015 11:09 AM
  • If you have any documents or link for this to achive please share on

    Thanks in advance

    Tuesday, December 01, 2015 2:47 PM
  • To convert Lotus Notes database to Outlook PST format download NSF to PST Conversion utility from

    This software is easy to use with self descriptive interface which guides user easily through conversion process.

    Is this software available for free?
    Friday, April 01, 2016 3:12 AM
  • I have the impression that the majority of the people responding on this thread didn't read the word "FREE" and are trying to push their own paid solution. Although your method with IMAP works, as you say its difficult inside a company.

    I wrote an NSF to EML, MBOX, PST converter that relies on a COM/DDE to Notes to get the mail, the C API in nnotes.ddl to the ConvertMIME functionality as Lotus doesn't allow this through COM/DDE, the Microsoft cryptographic provider on the host machine to re-encrypt Notes encrypted mails with the users local certificate and the Microsoft Extended MAPI interface to create the mail in the PST and the IConverter function to import SMIME eml files into PST files.

    The code is at

    and the binary releases are at

    Wednesday, November 16, 2016 7:49 PM
  • Yeah, even the supposedly "FREE" versions of code in this tread are basically trail versions or limited in some other way. The code I posted is entirely free, if someone asks you to pay for it I'd like to hear about it ;-)

    Good luck cleaning up this type of message board abuse !! Basically I think the only real way to do it is it have another product that becomes so highly referenced that the snake oil salesmen sink into the abyss. That's basically the reason I'm visiting these types of threads to try and get knowledge of a truly free NSF to PST converter that I wrote out there.


    Monday, November 21, 2016 11:58 PM
  • Just curious why does .org mean a scam?
    Thursday, March 23, 2017 6:10 PM
  • I Need too for the same...pls help me
    Monday, May 29, 2017 7:13 AM
  • there are multiple paid tools available but i searched free tool that can easily convert lotus notes nsf to outlook pst file format. try hope this will help you

    free nsf to pst -

    paid tool -

    Monday, June 19, 2017 8:07 AM
  • As per as my research, online marketplace has no free of cost tool for complete migration so far but adopting a features rich lotus notes to outlook migration tool in a genuine price is a best practice here. Although Sheep Query has resolved as it is old thread but my recommendation can help all guys who want to do Lotus Notes to Outlook migration in future. It's a features rich and proper migration tool as it has various options for customized and full migration both.
    Monday, September 18, 2017 5:31 AM