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DataNumen Exchange Recovery
What it is
DataNumen Exchange Recovery converts orphaned or corrupt Outlook OST files into PST files for access in Outlook. It supports Exchange 5.0 and later, Exchange ActiveSync, and Outlook 97 and later, including Outlook for Office 365 and Microsoft 365. Input can include offline OST files from IMAP accounts such as Outlook.com, Gmail.com, and Hotmail.com, as well as Microsoft 365 and Exchange accounts. The software can recover deleted objects, convert recovered items to PST, and process oversized 2GB OST files. It supports batch recovery and preview before export, and the resulting PST files can be opened in Outlook and other compatible email clients. The Windows product has no free plan, though DataNumen offers a free download; the listed one-user license costs $199.95, paid once. The maker says the full version is delivered immediately after ordering and advertises a refund if another tool recovers more. Support resources include a knowledgebase, tutorials, online help, and a question form.
For and against
For
- Supports Exchange 5.0 and later
- Recovers deleted objects and oversized 2GB OST files
- Includes batch recovery and preview before export
- Free download is available
Against
- Windows only
- No free plan
- One-user license costs $199.95, paid once
- Does not recover PST, MBOX, or EDB files
The verdict
DataNumen Exchange Recovery focuses on converting OST data to PST for Outlook access, with support for older and newer Outlook versions. Its paid license and Windows-only availability are important constraints to weigh before downloading.
Who it suits
It suits Windows users who need to recover data from Outlook OST files and export recovered items to PST. Its support for batch recovery and preview before export may be useful when handling multiple files or checking results.
Plans and prices
DataNumen Exchange Recovery — 1 user license
1 user license · discounted per-license prices for volume purchases
Read 8 Oct 2026 · datanumen.com
On the record
- Company
- DataNumen says it was founded in 2001 and lists offices in the United States, United Kingdom and Hong Kong.datanumen.com · read 8 Oct 2026
- Download
- The maker offers a free download of the product; its download link points to a Windows executable.datanumen.com · read 8 Oct 2026
- Exchange support
- Supports Exchange 5.0 and later, and Exchange ActiveSync.datanumen.com · read 8 Oct 2026
- Input sources
- Supports offline OST files for IMAP accounts such as Outlook.com, Gmail.com and Hotmail.com, as well as Microsoft 365 and Exchange accounts.datanumen.com · read 8 Oct 2026
- Large files
- The product page lists recovery of oversized 2GB OST files as a feature.datanumen.com · read 8 Oct 2026
- Outlook support
- Supports MS Outlook 97 and later, including Outlook for Office 365 and Microsoft 365.datanumen.com · read 8 Oct 2026
- Output compatibility
- Converted PST files can be accessed by Microsoft Outlook and other compatible email clients.datanumen.com · read 8 Oct 2026
- Purchase and delivery
- The maker says the full version is delivered immediately after an order and accepts payment through FastSpring, PayPro Global and BMT Micro.datanumen.com · read 8 Oct 2026
- Purpose
- Converts orphaned or corrupt Outlook OST files to PST files for access in Outlook.datanumen.com · read 8 Oct 2026
- Recovery
- The product can recover deleted objects and convert recovered items to PST format.datanumen.com · read 8 Oct 2026
- Refund
- The maker advertises a Best Recovery Guarantee under which it will refund an order if another tool recovers more.datanumen.com · read 8 Oct 2026
- Support
- The maker provides knowledgebase, tutorials, online help and a form to submit questions.datanumen.com · read 8 Oct 2026
- Trial detail
- The maker’s product page provides a free download but does not state a trial duration.datanumen.com · read 8 Oct 2026
