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
    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.
    Exchange and Office 365 Backup
    • 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
    • OST to Office 365 Migration
    • OST to Exchange Migration
  • Screenshots
    • OST to PST
    • OST to Office 365 Migration
    • 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
  • Exchange Throttling Policy
  • Map the Mailboxes
  • Multifactor Authentication
    • Enable MFA in Office 365
    • Create App password for MFA
    • Disable Security Defaults
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  3. OST to PST Converter to convert Outlook data files
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Retrieve Outlook emails with EdbMails converter for OST

Have you ever encountered a scenario where:

  • You lost access to your Exchange mailbox due to a server crash or accidental deletion, and found yourself struggling to recover your valuable data?
  • Or have you ever faced performance issues due to an overgrown OST file size that was impossible to manage?
  • Did your Outlook unexpectedly crash, corrupting your Offline Outlook data file (.ost) or displaying an error message?
  • Is your Outlook not connected to the server and you are experiencing Outlook sync issues?

In these cases, your email communication will be disrupted and the situations can be frustrating and stressful.

With EdbMails OST to PST Converter, you can easily convert your Exchange offline folder (.ost) files to Outlook Data Files (.pst) in just a few clicks. Its advanced algorithms ensure that the conversion process is fast, efficient, and accurate, so you can rest assured that all your data is safe and secure.

But that's not all - EdbMails offers a host of other features that make it the best choice for your data conversion and migration.

  • The software can recover data from even the most damaged or corrupted OST files.
  • In addition, it can convert OST files to a wide range of formats such as HTML, EML and MHT.
  • With the selective conversion feature, you can choose specific folders or items to convert, or you can convert the entire OST file.
  • If you are an Outlook user who needs to switch from one email client to another, or if you want to access your OST files on a different device, the application is the perfect solution for you.
  • In addition, you can also directly migrate Outlook file data to Office 365 and Exchange.

EdbMails OST to PST Converter

Common reasons for OST file corruption

OST files may get corrupted due to various reasons and this can lead to data loss if it is not fixed immediately. The following points are the most common reasons for OST file corruption.

  1. The Exchange server can become unavailable permanently in case of scenarios such as ransomware attacks, Exchange server crashes, or accidental mailbox deletions, which renders the Offline Storage Table (.ost) file an orphan.
  2. Various issues can prevent you from accessing the OST file in Outlook, such as registry or installation issues, leading to errors like 'Your Outlook data file could not be configured' or Outlook (cached mode) OST file not updating folders from the Exchange server, OST file synchronization errors, inconsistent Exchange database, and process terminations due to database corruptions.
  3. Overgrown OST file size can cause Outlook performance issues and may necessitate copying emails from Outlook to the hard drive in the form of a PST backup.
  4. Network interruptions during OST file synchronization, abnormal Outlook shutdown, and Outlook termination can damage and corrupt OST files, which can be recovered and converted to PST using EdbMails OST converter software.
  5. Accidentally deleted folders or emails in Exchange can be backed up to PST by exporting local OST files using EdbMails tool.

EdbMails enables you to convert OST files to PST format for convenient and safe recovery/backup in all the above scenarios.

Why Choose EdbMails OST to PST Converter?

EdbMails is the best choice for converting OST files to PST format because it offers a wide range of features, including high-speed conversion, user-friendly interface, and 100% data security. With EdbMails OST converter tool, you can convert your OST files to PST format quickly, without losing any data.

On the other hand if you are using SCANPST for Outlook data repair, it frequently fails and displays errors such as ‘Inbox repair tool does not recognize the file.ost’ or ‘scanpst fails to repair ost file’. When you use scanpst.exe to repair an OST file, it can only handle minor OST file corruption and cannot recover mail items if your mailbox has been moved temporarily on the Exchange server.

To repair an OST file in Outlook 2021, 2019, 2016, 2013, 2010, 2007 and 2003, use an Outlook OST repair tool such as EdbMails.

How to repair the corrupt and damaged OST files?

Microsoft Outlook cannot access corrupted OST files. If you try to access mail items from such corrupted files, various error messages may appear such as, ‘Outlook OST file cannot be opened’, ‘Errors have been detected in the OST file’ and so on. EdbMails is one of the best options for repairing and converting corrupt and damaged OST files to PST. It can fully repair Outlook OST files and enable you to recover and convert all your email data.

How to repair the OST file and convert it to PST file?

Here are the steps to convert OST files to PST format

  • Step 1: Browse the corrupt OST file to repair and convert
  • Step 2: Select the mailbox and folders you want to export
  • Step 3: Choose the PST file location to save the recovered data
  • Step 4: Apply Advanced Filter Settings - Date, CC, To, (optional)
  • Step 5: Start converting the Outlook OST file to PST.
  • Repair OST file

Features of EdbMails OST to PST Converter

  1. Easy-to-use Interface: EdbMails OST to PST Converter has a simple and user-friendly interface that makes it easy for anyone to convert OST files to PST format.
  2. High Speed Conversion: With EdbMails, you can convert large OST files to PST format in just a few minutes. To address the issue of oversized OST files during conversion, the application allows you to split the OST file into multiple PST files.
  3. 100% Safe and Secure: EdbMails OST to PST Converter is a safe and secure tool that ensures that all your data is protected during the Outlook data conversion process.
  4. Preview Option: EdbMails allows you to open the OST file and preview the mailbox items including emails, contacts, calendars, notes, tasks, journals, header information before converting it to PST format.
  5. No Data Loss Conversion: EdbMails ensures that all your Outlook data is converted to PST format without any loss.
  6. Outlook Compatibility: EdbMails is compatible with all versions of Outlook, including the latest version of Outlook 2022.

Frequently Asked Questions (FAQ)

  1. What is an OST file and how does it differ from PST files?

    An OST (Offline Storage Table) file is an offline copy of an Exchange mailbox that is stored on the local computer. It enables you to work offline and synchronize the mailbox changes with the Exchange server when a connection is established. OST files are created automatically when the Exchange mailbox is configured in Cached Exchange mode in Microsoft Outlook.

    A PST (Personal Storage Table) file, on the other hand, is a file format used to store copies of emails, contacts, calendars, and other data items in Microsoft Outlook. Unlike OST files, PST files are not synchronized with an Exchange server and are usually created for archiving or backup purposes.
    The main difference between OST and PST files is that OST files are used for offline access to Exchange mailboxes while PST files are used for storing Outlook data locally. OST files are created in Cached Exchange mode to provide users with offline access to their Exchange mailbox data. PST files, on the other hand, are created by users to archive or backup Outlook data or to store data items that are not associated with Exchange server mailboxes.

  2. Does EdbMails fix OST file corruption?

    Yes. Using EdbMails OST to PST converter tool is the best way to repair corrupt OST files. You can fix the OST file corruption and restore all of your email data. The application also enables you to save email messages in EML, HTML and MHT formats. Additionally, you can directly upload OST to Office 365 or to a Live Exchange server.

  3. How does EdbMails compare to ScanPST?

    Compared to ScanPST, EdbMails offers more advanced features, better data recovery options, a user-friendly interface, and can recover and convert corrupted and orphaned OST files to PST format. ScanPST may not be able to recover data from severely corrupted PST files.

  4. How long does it take EdbMails to convert an OST to a PST file?

    EdbMails uses advanced algorithms to convert OST files to PST format quickly. The conversion time varies depending on the size of the OST file, but it typically takes only a few minutes.

  5. Can I convert OST to PST for free with EdbMails?

    Yes, EdbMails includes a free trial version with which you can convert 30 mail items from each folder of the OST file to PST format. The free tool also enables you to repair, open and view the contents of the OST file before you start the conversion operation.

  6. How does EdbMails protect the data during the conversion process?

    EdbMails algorithms ensure that all data is protected during the conversion process. The software does not alter the original OST file and saves all data to a new PST file. The output file is an exact copy of the source file, including all email properties and data formatting.

  7. Can EdbMails convert password-protected OST files to PST format?

    Yes, EdbMails can convert encrypted and password-protected OST files to PST format without requiring you to provide any password during the conversion.

  8. What is the largest OST file EdbMails can convert to PST?

    There is no size limit on the OST file that EdbMails can convert to PST. The software can handle large OST files without any size issues. Furthermore, you can use the file split option during the conversion to split the output PST file into smaller parts for easier management.

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 In this manual

Reasons of OST file corruptionWhy Choose OST to PSTCorrupt of OST filesHow to repairFeatures

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