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
    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
    • GAL and All Address Lists migrationDirectly migrate Exchange and Office 365 Global address list and Address Lists items
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    3. Exchange Mailbox Backup using OST file

    Backup Exchange mailbox using OST file

    Exchange Mailbox Backup using OST file

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 Office 365
    • Modern Authentication Using OAuth 2.0
      • Microsoft 365 modern authentication
      • Automatic Registration
      • Manual Registration
    • Connect with Global Admin
    • Connect to Office 365 with full access permission
    • Connect to Office 365 with CSV file option
    • Connect to Office 365 as single user mailbox
  • 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
  • Set Office 365 Impersonation rights
    • Using PowerShell commands
    • Using Office 365 GUI
  • Map the Mailboxes
  • Multifactor Authentication
    • Enable MFA in Office 365
    • Create App password for MFA
    • Disable Security Defaults

How to Backup OST File from Outlook 2019, 2016, 2013, 2010?

Exchange Online does not support traditional mailbox backups. That is, a mailbox cannot be restored to the state it was in when the backup was taken. If you need a backup of the Exchange mailbox, you can export the OST file from the user's Outlook if it is configured with an Outlook profile.

Microsoft Outlook stores a local copy of the mailbox data on the server as Offline Storage Table files (OST). For instance, these files contain a copy of the cloud mailbox data from Office 365, Exchange server, and IMAP accounts. The OST files are created by enabling the Cached Exchange Mode in Outlook. OST files can be used offline, and when an internet connection is available, the mailbox data in the cloud is synchronized with the local OST files in your computer.

Exchange Mailbox Backup using OST file

QUICK LINKS

Convert EDB to PSTConvert OST to PST from all languagesSave Outlook emails to hard driveOutlook cannot open OST fileSplit and export oversized OST to PST filesRestore deleted emails from OST filesOST to Office 365 converter tool

Reasons for mailbox backup and conversion of OST file to PST

  • An Exchange server can crash or may go offline causing the local OST file to become orphaned.
  • OST files are also orphaned due to Exchange server failures or EDB file corruptions.
  • Local OST files are prone to corruption, virus infection, unexpected system shut-downs, Outlook crashes, hardware failure events and ransomware threats.
  • Difficult to completely repair corrupted OST files manually.
  • A cached OST file does not reflect the current mailbox contents on the server making it difficult to retrieve important data that has been lost recently.
  • Overgrown OST files are difficult to manage and cause syncing issues with MS Outlook.
  • Accidental deletion of folders and files in Exchange server can result in data loss.

How to convert the OST file to PST?

Steps to backup OST to PST

  • Install the EdbMails converter for OST on your computer.
  • Before exporting, select the OST file and preview the mailbox / folder data.
  • Select the PST file location where the exported data should be saved.
  • Use advanced filter settings
  • Backup all of your emails from the OST to PST. That's all!
  • OST to PST converter video
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