EdbMails EDB Recovery and Migration software
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    Exchange EDB / Email Recovery Tools
    • EDB Recovery and MigrationRecover EDB to PST, EDB to Office 365 and Exchange NO Duplicate Migration
    • OST Recovery and MigrationRecover OST to PST, OST to Office 365 and Exchange Migration
    • PST Recovery and MigrationRecover Outlook PST, PST to Office 365 and Exchange Migration
    • MBOX Export and MigrationExport MBOX to PST, MBOX to Office 365 and Exchange Migration
    • NSF Export and MigrationExport NSF to PST, NSF to Office 365 and Exchange Migration
    • EML to PST ExportEML files export to Outlook PST format
    • PST to MSG ExportOutlook PST files export to MSG format
    • MSG to PST ExportExport MSG files Outlook PST files
    Exchange and Office 365 Migration
    • Exchange Server MigrationMigrate Exchange 2007, 2010, 2013, 2016, 2019 to Office 365 tenants. Also, migrate between Exchange servers and PST
    • Office 365 MigrationMigrate Source Office 365 tenants to Destination Office 365 tenants. Also, migrate to Exchange Server and PST
    • IMAP Email Backup & MigrationMigrate all IMAP email servers (Gmail, Zimbra, Zoho, Yahoo etc.), Office 365, Exchange and Backup to Outlook PST
    • SharePoint Online MigrationMigrate documents, files and folders from SharePoint sites
    • OneDrive for Business MigrationMigrate documents, files and folders from OneDrive
    • Microsoft Teams MigrationMigrate Teams, documents, files and folders etc.
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    • Office 365 BackupIncremental, Granular, Encrypted and Compressed Office 365 Mailboxes Backup
    • Exchange Server BackupIncremental, Granular, Encrypted and Compressed Exchange Mailboxes Backup
    • SharePoint, OneDrive & Teams BackupBackup Online site collections, Team sites, Office 365 groups, all documents etc.
    • Duplicate Remover - Office 365 & Exchange Remove duplicate emails, calendars, contacts, journal etc. from Office 365 and Exchange
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User’s Manual
OST Recovery and Migration

User Manual

User Manual

  • Overview
  • System Requirements
  • Installation
    • Installation process
    • Reinstall or Upgrade
    • How to uninstall
  • Initial Setup
  • FAQ
    • OST to PST
    • OST to Office 365 Migration
    • OST to Exchange Migration
  • Videos
    • OST to PST Converter
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  • Screenshots
    • OST to PST
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    • OST to Exchange Migration
  • How it works?
    • OST to PST Converter
    • OST to Office 365 Migration
    • OST to Exchange Migration
  • Connect to Exchange server for multiple mailboxes migration
    • Connect with Global Admin
    • Connect to multiple users using CSV file
    • Connect using full access permission
    • Connect individual users for Single / Specific user Migration
  • Connect to Hosted Exchange for its Migration
    • Connect with Full Access permissions
    • Using multiple user credentials with CSV file
    • Connecting to Individual user for its migration
  • Connect to target Office 365
  • Modern Authentication Using OAuth 2.0
    • Microsoft 365 modern authentication
    • Automatic Registration
    • Manual Registration
  • Set Exchange Server Impersonation rights
    • Exchange 2007 and below
    • Exchange 2010, 2013, 2016 and 2019
    • Set using Exchange Server GUI
  • Knowledge Base
    • Corrupt OST file recovery
    • Unicode and ANSI OST format
    • Split OST file
    • Rebuild OST file
    • Exchange mailbox backup
    • Recover orphaned OST file
    • Recover all Exchange and Outlook OST files
    • Recover metadata and attachments
    • Export unlimited OST files to PST
    • Free OST file viewer
    • Granular recovery of OST file
    • Recover encrypted OST file
    • Recover deleted mailboxes from OST
    • Export email, calendars, contacts
    • Selective OST export
    • Migrate OST to Office 365
    • OST to Live Exchange
    • Outlook OST cannot be accessed
    • Log report
    • Fix Outlook not connecting to server error
    • Fix Outlook the set of folders cannot be opened
    • Fix Outlook not syncing error
    • Outlook Cached Exchange mode
    • Fix Outlook data file cannot be accessed
    • Fix the error Outlook inbox not updating
    • Your mailbox has been temporarily moved on Exchange server
    • Open OST file in Outlook
    • Repair corrupted OST files from Outlook 365
    • Save Outlook emails to hard drive
    • Import OST file into Outlook
    • Your Outlook data file cannot be configured
    • Errors have been detected in the OST
  • Incremental Migration
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  • Map the Mailboxes
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    • Enable MFA in Office 365
    • Create App password for MFA
    • Disable Security Defaults
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  3. How to recover metadata and attachments from OST file?
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Recover Metadata and Attachments from OST files

Email metadata includes critical details such as message headers, subject lines, sender and recipient information, timestamps, and CC/BCC fields—elements essential for preserving the integrity and traceability of communications. Attachments further add to the importance of maintaining complete records. However, when OST files become inaccessible due to disconnection from Outlook profiles, file issues, or other limitations, recovering this information can be difficult. Outlook’s native export features may fail to retain all metadata or attachments, resulting in incomplete backups and potential data gaps.

EdbMails OST to PST Converter provides a robust solution for extracting full mailbox content—including detailed metadata and attachments—from corrupted, orphaned, or encrypted OST files. It maintains folder structure, formatting, and message fidelity, ensuring the converted PST files remain consistent and ready to use in Outlook.

Exchange mailbox backup using OST

This step-by-step guide walks you through the complete recovery process using EdbMails. You’ll learn how to load your OST file, preview mailbox contents, apply filters, and export selected data into PST format. Whether you're restoring lost data or preparing for migration, the guide ensures your mailbox remains intact, accessible, and easy to manage.

Common uses of metadata and attachments in emails

  • Metadata is important for many businesses because they contain sensitive and important information including sender and recipient address.
  • Required for email references, verifications, compliance and legal requirements.
  • Metadata and attachments serve as data records. For instance, it might be required to check the exact time an email was sent.
  • Metadata information is useful and practical to search for emails and selectively export mail items based on Sender, To Address, Attachment Name.
  • Metadata information can help distinguish spam emails from legitimate senders. For instance, email headers can be used with trace email tools to determine the source of an email.

EdbMails OST to PST converter tool effortlessly recovers and exports all the metadata information from OST to PST thus maintaining data consistency. You can save background images, attachments (with all extensions), appointments, meeting schedules, from inaccessible OST files and export them to PST. You no longer have to worry about data consistency and integrity with EdbMails.

  • How to convert OST to PST from any Outlook version?

    With EdbMails OST to PST Converter, converting OST files to PST is quick and hassle-free, regardless of your Outlook version. It supports Outlook 2021, 2019, 2016, 2013, 2010, 2007, and 2003, ensuring seamless data transfer while preserving the integrity of your data. EdbMails retains everything from special characters and metadata to calendar entries, emails, and folder structures, ensuring no data is lost. One of the standout features of EdbMails is its ability to convert OST files from older Outlook versions in a single, simple process, without the need for complex PowerShell scripts or technical expertise. Plus, you can easily apply filters to selectively export emails and other items, giving you full control over the data you want to recover.

    Steps to Export orphaned OST to PST

    Step 1: Download and install EdbMails OST to PST converter tool

    • Download and install the EdbMails application on any Windows-based computer.

      EdbMails software installation

    • Enter your email address and password to login or if you haven’t registered an account click on ‘Start Your Free Trial’ to explore.

      Login to EdbMails application

    • Select ‘OST Recovery and Migration’.

      Select OST Recovery and Migration

    • Select ‘OST to PST’.

      Select OST to PST

    • You can keep the default job name or enter a custom one for easier identification, then click 'Next' to continue.

      Enter export job name

    Step 2: Select the OST file containing your mailbox data

    • Click ‘Browse for OST file'.

      Browse for EDB file

    • Select the offline OST file from your computer drive, then click the ‘Next’ button to continue. You can also share the OST file on a network with read and write permissions assigned.

      Select OST file

    • Click ‘Browse’.

      Click Browse

    • Choose the destination folder for saving the exported PST files and make sure the drive has sufficient free space to accommodate the data.

      Select PST location

    • EdbMails scans your OST file and recovers data in case of corruption.

      Recovery operation progress

    • After the recovery is complete, the full folder structure will be displayed in the left pane. You can expand the mailbox and browse its folders to preview the contents. The built-in preview feature allows you to view emails, contacts, notes, tasks, and calendars directly within the application— no need to open Outlook.

    Step 3: Preview and select the mailbox

    • Select the required mailboxes/folders and click the ‘Next’ button.

      Select mailboxes or folders

    • You can use the advanced filter settings to export Exchange emails to PST based on criteria like date, subject, attachments, and so on.

    Step 4: Export the rebuilt OST file to PST

    • Review the mailboxes and folders selected for export. Ensure the 'Action' is set to 'Export', then click the 'Start Export' button to begin the process.

      Start OST to PST Export

    • The export operation is now initiated, and you can monitor it in the progress bar. Once the process is complete, EdbMails will display the export operation completion message.

      OST to PST Export progress

    • Once the export is complete, you can import the PST file into Outlook and access all attachments as usual. Additionally, EdbMails allows you to extract individual mail items and save them in HTML, EML, or MHT formats for flexible viewing and archiving.

Additional resources:

  • Recover Orphaned OST file
  • Recover all Exchange and Outlook OST files
  • Export unlimited OST files to PST
  • Free OST file viewer
additional resource

 In this manual

IntroductionMetadata common usesSteps to convert OST to PST

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