In the event of a Microsoft Exchange server failure, DataNumen Exchange Recovery is a dependable piece of software that allows you to restore email messages and attachments from Microsoft Exchange online folder files. It’s meant to recover data from OST files on your PC if your Exchange server crashes or suffers serious damage.
Even if the dedicated server fails, email messages, attachments, and contacts associated with your Exchange email account can still be found in the Exchange offline directory files on the client machine. The program can scan orphaned or corrupted Exchange offline folder files, print the OST format, and restore data.
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Exchange Recovery Features & Screenshots
The DataNumen Exchange Recovery software may preserve the fragments of information extracted from OST files as PST files, which can be accessed by other apps. Simply choose the output file format and choose the appropriate OST file. PST files are supported, and they are compatible with different versions of Microsoft Outlook.
- The designed mission for DataNumen Exchange Recovery is to help users to recover mail messages, meeting requests, contacts, folders, posts, calendars, appointments, distribution lists, tasks, task requests, journals and notes in OST files. All properties, such as subject, to, from, cc, bcc, date, etc., are recovered.

- DataNumen Exchange Recovery also helps you recover mail messages in plain text, RTF, and HTML format. Attachments, such as documents and photos attached to messages and contained in HTML bodies, also are restored.
- To Microsoft Outlook and other compatible mail clients can access, the recovered folders are saved and converted to personal folders (PST) files.

- In addition, DataNumen Exchange Recovery can also be used for mending and converting OST files on corrupted medias, such as floppy disks, Zip disks, CDROMs, etc at batch mode. It also supports searching and selecting the OST files to be repaired on the client’s computer. You can also fix an OST file with the context menu of Windows Explorer easily thanks to integration with Windows Explorer.

- Other communications, Excel spreadsheets, Word documents, and other files are among the embedded items that can be recovered.
- This tool supports converting OST to PST files fast and efficiently with oversized 2GB OST files as well as 16777216 TB (i.e. 17179869184 GB).

- It provides a straightforward solution to split the output PST file into several small files, create fixed PST files in Outlook 97-2002 format. You even can use it to save the recovered PST file at any location, including the network-attached drives recognized by the local computer.
- What’s more, DataNumen Exchange Recovery is used for recovering the OST file even if you don’t have the password.

Frequently asked questions
What should you pay attention before running DataNumen Exchange Recovery?
Before converting the OST file, you should close Microsoft Outlook and any other applications that may access or modify the OST file.
Technical Details
Language Support | English, Français, Italian, Spanish, Swedish, and more… |
Money Back Guarantee | 30-Day |
Operating System | Windows Vista, Windows 7, Windows 8/8.1, Windows 10/11 |
Shipping | Register code will be sent to your email in minutes |
Subscription | Lifetime |
Support Services | Email, Tickets |