How to Recover Deleted Emails from Microsoft Outlook OST File

Have any deleted OST file emails that you need to recover? It’s a fairly menacing problem for anyone who's experiencing it. Fortunately or unfortunately, I am familiar with this issue and I have four methods that you can use based on the scenario. Continue reading to learn more!

Written by Tony Landry, Updated on September 19, 2023

Loads of Outlook emails contain important information. If you cannot access your OST file or notice any data loss in your OST file, be it due to accidental deletion or Outlook data file corruption, there are a few ways in which you can recover deleted emails from Outlook OST files.

How to Recover Emails From OST Files?

  1. Recover OST file emails From the Deleted Items Folder
  2. Recover OST file emails by Accessing the Exchange Account
  3. Recover OST file emails by Exporting them as a PST File
  4. Recover OST file emails Using Remo Repair Outlook PST

Recover OST File emails from the Deleted Items Folder

An OST is an Outlook data file that stores all information such as Inbox, Sent items, calendars, journals, and other attributes on the computer (also called a local copy). When the user is working offline, any change made will be saved on the .ost file. The next time the user goes online, the Outlook information will then be synchronized with the server. You can recover deleted emails from OST files by following the instructions below-

  1. Open the Outlook application and click on Deleted items or Trash from the left column.
  2. open-trash

  3. Locate the email that you need to recover.
  4. Next, right-click on the email, click on Move and select Other Folder.
  5. move-deleted-outlook-file-from-trash

  6. Choose the Inbox folder and click on OK. You can now find the restored email in your Outlook inbox.

Recover OST file emails by Accessing the Exchange Account

There is a good chance your OST file may be malfunctioning due to a server issue. To resolve by recreating your OST file. you can do so by following the instructions below-

Note: Before proceeding ensure that your Outlook application is closed.

  1. Open the Control panel, using the search bar, locate and double click on Mail.
  2. click-on-mail

  3. In the Mail setup window, click on Show Profiles.
  4. Show-profiles

  5. Select your current profile and click on Properties.
  6. select-properties

  7. Open E-mail Accounts.
  8. show-outlook-emails

  9. Select your Exchange account and click on Change.
  10. click-on-change

  11. Uncheck Use Cached Exchange Mode and click on More Settings.
  12. In the Microsoft exchange window, under the advanced tab, open Offline Folder File Settings.
  13. Disable Offline Use, enable Use Cached Exchange Mode, and click on Yes.

Recover OST File emails by Exporting them as a PST File

You could try restoring your Outlook Items by using the export & import Wizard to export all your data as a PST file.

  1. Open Outlook and access the File menu by clicking on File.
  2. outlook-open-file

  3. Under the Import & Export Tab click on Import/Export.
  4. open-and-export

  5. Select Export to a File and click on Next.
  6. export-to-a-file

  7. Select Outlook Data file (.pst) and click on Next.
  8. export-as-outlook-datafile

  9. Select all the required Outlook Items and click on Next.
  10. export-outlook-items

Recover OST file emails Using Remo Repair Outlook PST

If all the previous methods have failed. It is likely that your OST file is corrupt. The best solution to that would be to make use of a professional tool such as Remo Repair Outlook PST. The software will be able to restore all your lost or deleted emails and other Outlook items in a jiffy. To regain access to all your lost data, download Remo Repair Outlook PST now!

Note: Remo Repair Outlook PST can repair both OST and PST files.

Steps to Repair OST File using Remo Repair Outlook PST

  1. Download, Install, and Launch Remo Repair Outlook PST.
  2. Select a PST Import method-
    • Open Default PST File: The software imports the Default Outlook data file.
    • Select PST File Manually: Use the Browse option to manually search and import your OST file.
    • Find All Your PST Files: Searches and lists every Outlook Data file located in the drive.
  3. step1-choose-outlook-file-import-method

  4. Select smart scan, select a destination folder, and click on Repair.
  5. select-destination-folder-and-click-repair

  6. Save the Repaired OST file and verify the results.


Whenever you try to delete any emails from Outlook, be careful not to delete any important ones. If you have accidentally deleted an Outlook email, you can restore them from Deleted Items as mentioned above. In case you don’t have any emails on Deleted Items, you can recover the emails from the OST file. In order to Recover Outlook data files, always use Remo Repair Outlook PST. Once the file is repaired you can easily recover emails from the Outlook data file.

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