How to Convert Outlook OST to IBM Notes or Domino Server ?

Rollins Duke   
Published: May 11th, 2024 • 6 Min Read


Note: Get the ultimate OST to NSF Converter solution to resolve your query.

Are you looking for a solution to convert your OST files to NSF format ? Then use OST Converter Software is proficient software which permits to import encrypted, compressible, password protected or large OST files to IBM Lotus Notes.

This application supports OST (Offline Storage Table) files of Microsoft Outlook / Exchange Server and IMAP Server. OST to NSF Converter also allows to migrate deleted emails from OST to IBM Domino Server / Lotus Notes. This toolkit has various advanced features but first, know the steps by steps process to import Outlook OST to IBM Notes email client without wasting of the time.

Import Outlook OST Files to Lotus Notes IBM – Easy Steps

  • Download  OST to NSF Converter Wizard which has a particular option for completing Outlook OST to Lotus Notes migration process. Because of its separate saving option, it is also known as OST to NSF Converter. It provides 100% accurate result with a full guarantee.
    Download for Windows     Download for Mac
  • Start above mentioned software, it will automatically load .ost files from the default storage location of your computer. Users can also add .ost files manually in the software GUI by clicking on the Select Files or Select Folders option.

add .ost files

  • OST to NSF Exporter previews Outlook OST folders in software GUI. Users can check or uncheck specific folders and press the Next button.

OST to NSF Exporter

  • The software offers multiple saving options, choose LOTUS NOTES as saving format.

saving options

  • Now select the destination path for storing the resultant .nsf (IBM Notes) files and press the Next button.

destination path

  • OST file to NSF conversion process is running, the tool is also counting live converted emails.

counting live converted emails

  • .ost to .nsf migration process has been completed successfully, now click on the Ok button.

.ost to .nsf migration

  • After completion of the task, the tool will automatically open the destination path so that users can easily get converted .nsf file(s).

converted .nsf file

  • At last, run IBM Notes email client and choose Import button for importing resultant .nsf files in IBM Notes.


In this way, anyone can easily move emails, contacts, calendars, attachments, journals, etc. from Outlook / Exchange / IMAP Server OST files to IBM Notes. The tool requires IBM Lotus Notes installation for converting OST files to NSF format.

OST to NSF Converter Features

Export OST to NSF in Bulk – An Offline Storage Table (OST) file stores replica of Microsoft Exchange Emails in local computer. Latest MS Outlook editions directly create OST file too for storing the emails. OST to NSF Migrator allows to export multiple OST files to NSF format at once.

Supports Different Offline Files – This recommended software is compatible with various types of OST files exported from Microsoft Exchange Server, Outlook and IMAP Server OST files. Just enjoy the conversion without limitations.

Migrate Encrypted OST File to NSF – If your OST file is secured with no encryption, compressible encryption, and high encryption then BitRecover OST to NSF Wizard will permit for completion of the task error-free. The tool also supports ANSI & Unicode OST files, password protected OST files, compressible OST files, orphaned OST files, etc.

Restore Deleted Emails for Conversion – The tool has a separate option i.e. Use Recovery Mode which is beneficial for converting permanently deleted emails from OST files to healthy IBM Lotus Notes NSF format.

Convert OST 2 NSF with Objects – This application ensures that OST file objects like emails, contacts, calendars, attachments, journals, subject, signature, etc. stored within Offline Storage Table files get migrated into NSF format.

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Wide Compatibility – This software is wide compatible with OST files of Microsoft Outlook / Exchange Server 2019, 2016, 2013, 2010, 2007, 2003, etc. It can be installed on Win 10, Win 8.1, Win 8, Win 7, Win Vista, Win XP, Win Server 2019, Win Server 2016, Win Server 2012, Win Server 2008, and all.

Creates Log Report Module Automatically – After completion of the task, the tool automatically creates a log report module which has information about converted data including folder wise information, destination path, email counting, etc.

Change Specific OST Folders to NSF – After loading OST files in the software panel, the tool shows all email folders in the software GUI. Also, users have complete freedom for choosing specific emails folders for OST to NSF conversion.

Freedom to Store Resultant Data – OST to NSF Migrator automatically chooses desktop for storing converted NSF files but users can also change the destination path by clicking on the Browse icon according to their preference.

Auto Detect Facility – If Microsoft Outlook installed on your computer then the tool auto-detects OST files and load them in the software panel. Also, it is a user-friendly feature for saving user’s time and efforts.

Frequently Asked Questions & Answers

Que 1 – How to migrate multiple OST files to NSF (IBM Notes) format ?

Ans – Steps for transferring OST files to IBM Lotus Notes in bulk.

  1. Start BitRecover OST to NSF Wizard and add multiple .ost files in software UI.
  2. Check OST folders from the software interface, choose Lotus Notes as saving format.
  3. Select the destination path and press the Next button to start the conversion procedure.
  4. After completion, get resultant NSF file from destination path.
  5. Run IBM Notes email client, and choose Import option for importing converted NSF file in Lotus Notes.

Que 2 – Do I need to install Microsoft Outlook before performing your software ?

And – No, Microsoft Outlook installation is not mandatory for using BitRecover OST to NSF Exporter.

Que 3 – How many OST files can be converted using your software at once ?

Ans – It depends on you, the tool authorized to convert unlimited OST files to NSF format at once.

Que 4 – Is IBM Notes email client installation compulsory for OST to NSF migration ?

Ans – Yes, the tool requires IBM Notes interface for completing the task with 100% accuracy.

Que 5 – Can I use this software to import OST files to IBM Domino Server ?

Ans – Yes, the tool creates a generic NSF file which is compatible with all IBM Domino / Notes editions.

IBM Notes Benefits

Lotus Notes comes with Email, Address Book, Calendar, Schedule, Database, Programming, File Sharing, Web Server facilities. IBM Notes provides high-level security features so it is the first choice of working professionals. It is a trustworthy email client as it is giving its services from December 1989.


OST to NSF Converter is available with free demo edition which permits to convert 25 emails from each OST folder to NSF folder without changing the structure of folders and subfolders. First, check the software functionality using freeware edition and after that grab license keys for avoiding the restrictions.