EdbMails EDB Recovery and Migration software
  • Products
    EdbMails
    All-in-one Recovery and Migration Tool
    • EDB recovery and Migration
    • OST, PST, MBOX, NSF, EML, MSG
    • Office 365, Exchange Migration
    • SharePoint, OneDrive & Teams
    • G Suite Migration
    • IMAP Migration
    • Duplicate Remover
    • EdbMails Data Recovery
    • Backup Solutions
    All Products

    EDB Recovery and Migration

    EdbMails lets you recover corrupted, damaged, and offline Exchange EDB files, convert EDB mailboxes to PST format, and directly migrate mailbox data to Office 365 and live Exchange Server.

    EDB to PST
    Recover corrupted, damaged, offline EDB files and convert Exchange EDB mailboxes to PST file format
    Public Folder to Exchange
    Migrate public folders from an Exchange offline EDB file to live Exchange Server
    EDB to Live Exchange Migration
    Directly migrate offline Exchange database (EDB) files to live Exchange server
    Archive Mailbox to Office 365
    Migrate archive mailboxes from offline EDB files directly to Office 365
    EDB to Office 365 Migration
    Directly migrate offline Exchange database (EDB) files to Office 365
    Public Folder to Office 365
    Migrate public folders from an offline Exchange EDB file to Office 365

    OST, PST, MBOX, NSF, EML, MSG Export and Migration

    EdbMails lets you to recover OST and PST files, export OST, PST, MBOX, NSF, EML, and MSG files to PST files, and directly migrate OST, PST, MBOX, and NSF mailbox data to Office 365 and live Exchange Server.

    OST Recovery and Migration
    Recover offline OST files, convert OST to PST, and migrate OST to Office 365 and Exchange Server
    PST Recovery and Migration
    Recover Outlook PST files , Export PST to PST, migrate PST to Office 365 and Exchange Server
    MBOX Export and Migration
    Export MBOX to PST, migrate MBOX to Office 365 and Exchange Server
    NSF Export and Migration
    Export NSF to PST, migrate NSF to Office 365 and Exchange Server
    EML to PST Export
    Convert EML files to Outlook PST files
    PST to MSG Export
    Convert Outlook PST file to MSG file format
    MSG to PST Export
    Export MSG files to Outlook PST files

    Office 365, Exchange Migration

    EdbMails lets you securely migrate mailboxes across Microsoft 365, Exchange, Google Workspace (G Suite), and IMAP-supported servers such as Outlook, Gmail, Zimbra, Zoho Mail, and cPanel, ensuring zero downtime.

    Office 365 Migration
    Migrate between Office 365 tenants, Office 365 to Exchange, Office 365 to PST, PST files to Office 365.
    Exchange Migration
    Migrate between any Exchange Servers, Exchange to Office 365, Exchange to PST, PST files to Exchange.
    Tenant to Tenant Migration
    Migrate Mailboxes, Public Folders, Archive Mailboxes between Office 365 Tenants.
    Exchange to Office 365
    Migrate Mailboxes, Public Folders, Archive Mailboxes from live Exchange server to Office 365.
    Office 365 to IMAP
    Migrate Office 365 to IMAP, Office 365 to Gmail, Office 365 to Outlook, Office 365 to Zoho etc.
    Exchange to IMAP
    Migrate from live Exchange Server to IMAP servers such as Gmail, Outlook, and Zoho Mail.
    Public Folder to Office 365
    Migrate Public Folders between Office 365 tenants with complete folder hierarchy and mailbox data integrity.
    Exchange to PST
    Export live Exchange Server mailboxes, public folders, and archive mailboxes to Outlook PST files.

    SharePoint, OneDrive & Microsoft Teams Migration

    EdbMails lets you migrate SharePoint sites, OneDrive data, Microsoft Teams, teams, channels, chats, permissions, and documents between Microsoft 365 tenants while maintaining the existing folder structure and data integrity.

    SharePoint Online Migration
    Migrate documents, lists, files and folders from SharePoint sites.
    OneDrive for Business Migration
    Migrate documents, lists, files, folders, private chats from OneDrive.
    Microsoft Teams Migration
    Migrate Teams, chats, channels, documents, files and folders etc.

    Google Workspace / G Suite Migration

    EdbMails G Suite Migration Tool lets you easily migrate emails, calendars, contacts, tasks, and more from G Suite to Office 365, Exchange Server, and IMAP servers using a Google Admin account without requiring individual user credentials.

    G Suite Migration
    Migrate emails, calendars, contacts, tasks from G Suite to Office 365, G Suite to Exchange, G Suite to IMAP Servers
    G Suite to Office 365
    Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to Office 365
    G Suite to Exchange Server
    Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to on-Premise Exchange Server
    G Suite to IMAP
    Migrate emails, calendars, contacts, tasks from Google Workspace / G Suite to IMAP, Outlook, Zimbra, Zoho etc.

    IMAP Migration

    EdbMails IMAP Migration tool lets you easily migrate emails from IMAP servers such as Outlook, Gmail, Zoho Mail, Zimbra, cPanel, and more. Supports IMAP to IMAP, Office 365, Exchange Server, PST, and bulk PST to IMAP migration.

    IMAP Email Backup & Migration
    Backup and migrate emails from IMAP servers to PST, Office 365, and On-Premises Exchange Server
    IMAP to Office 365
    Migrate emails, folders, and attachments from IMAP servers to Office 365
    IMAP to Exchange
    Migrate emails, folders, and attachments from IMAP servers to on-premises Exchange Server
    IMAP to PST
    Export emails, folders, and attachments from IMAP servers to Outlook PST files for backup
    PST to IMAP
    Migrate emails, folders, and attachments from bulk PST files to IMAP servers

    Duplicate Remover

    EdbMails Duplicate Remover lets you easily remove duplicate items from Office 365 and Exchange Server, and from IMAP, Outlook, Gmail, Zimbra, Zoho Mail, etc., ensuring a clean and organized mailbox.

    Remove Duplicates
    Easily clean up your Office 365, Exchange, Outlook and IMAP accounts by removing duplicate emails.
    Remove Duplicates from Office 365
    Remove duplicate emails, calendars, contacts, journal tasks, etc. from Office 365.
    Remove Duplicates from Exchange Server
    Remove duplicate emails, calendars, contacts, journal tasks, etc. from live Exchange Server.
    Remove Duplicates from IMAP, Outlook
    Remove duplicate emails, attachments from IMAP, Outlook, Gmail, Zimbra, Zoho Mail etc.

    Exchange, SharePoint, OneDrive, Teams and Office 365 Backup

    EdbMails enables secure, automated backup and recovery for Microsoft 365 services including Exchange Online, SharePoint, OneDrive, Teams, and Live Exchange Server with complete data protection and restore flexibility.

    Office 365 Backup
    Incremental, Granular, Encrypted and Compressed Office 365 Mailboxes Backup
    Exchange Server Backup
    Incremental, Granular, Encrypted and Compressed Exchange Mailboxes Backup
    SharePoint, OneDrive & Teams Backup
    Backup Online site collections, Team sites, Office 365 groups, all documents etc.

    EdbMails Data Recovery

    EdbMails Data Recovery Software lets you recover permanently deleted data, including photos, videos, documents, and archived files, from partitions on hard drives, SSDs, USB drives, SD cards, and external storage devices.

    EdbMails Data Recovery
    Recover and restore permanently deleted data from hard drives, SSDs, USB drives, SD cards, and etc.
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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
  • 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
    • Disable MFA in Office 365
  1. Home
  2. OST Recovery and Migration
  3. How to Import OST File into Office 365?
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Import OST File to Office 365

Importing OST Files to Office 365 is a must when users switch to Microsoft 365, face problems with an old Outlook profile, or want to restore mailbox data from another computer. OST files are associated with a specific Outlook profile and can't be opened directly, therefore, their contents can be accessed only by a specialized migration tool.

EdbMails OST to Office 365 migrator offers this migration as an easy task. It provides you with the facility to directly convert OST mailbox contents like emails, contacts, calendar entries, and their attachments into your Office 365 account, without using any manual methods or complex setup.

Migrate OST to Office 365 guide

The software is very user-friendly with simple steps. All you need to do is: choose the OST file, connect to the Office 365 tenant, and select the desired items/folders to transfer from the OST mailbox. So you can easily transfer the entire mailbox or just selected OST elements.

Why Import OST to Office 365?

There can be many situations where you may need to import your emails from OST to Office 365. Here are some of the common scenarios:

  1. Moving to Office 365: Better productivity, security, and reliability are forcing many organizations to move from on-premises Exchange servers to cloud-based Office 365. In such cases, users need to move their data, including OST files to Office 365.
  2. Changing to a New Computer: When you switch to a new computer or device, you may lose access to your locally saved OST files. If you transfer these files to Office 365, you will be able to access their emails and other data from any device that has internet access.
  3. Recovering Data After a System Crash: Local OST files may get lost in case of a system crash for users. When migrating these files to Office 365, you ensure that you can still use your data without any loss.
  4. Complexity of Microsoft Migration Tools: Microsoft’s in-built migration tool for Office 365 is complex and time-consuming, and involves a lot of research and scripting.
  5. Transitioning from Exchange Server to Office 365: Switching to Office 365 is a great opportunity to resolve storage limitations, compliance issues, support concerns, and eDiscovery challenges that usually accompany OST files in Exchange environments. Microsoft has also withdrawn support and technical assistance for legacy Exchange and Windows servers, making it more important than ever to move forward. Upgrading your mailbox to Office 365 gives you better accessibility, security, and long-term reliability.
  6. Accessing emails on the Cloud: Email Migration from OST to Office 365 helps you reduce the troubles associated with on-premise Exchange servers, which require frequent updates, security checks, and system maintenance. Using Office 365 allows you to access your emails easily via Office Outlook and mobile apps on multiple devices.
  • Steps to import OST to Office 365 with EdbMails

    Step 1: Download and install EdbMails software

    • Download and install the EdbMails application on your computer.

      EdbMails software installation

    • Launch the EdbMails application on your system.
    • Enter your registered email address and password, then click ‘Login’. If you’re a new user, select ‘Start Your Free Trial’ to proceed with the trial version.
      Note: Free Trial gives you access to all major features, and you can export up to 30 items per folder. To use full features and unlimited exports, you need to have a valid license purchased from the EdbMails website.

      Click here to purchase the license from the EdbMails website.

      After purchasing the software, just exit and restart the EdbMails application. Use the same email address and password that you used while purchasing to successfully activate your license.

      Login to EdbMails application

    • Select ‘OST Recovery and Migration’.

      Select OST Recovery and Migration

    • Select ‘OST to Office 365’.

      Select OST to Office 365

    • You can retain the default job name or click the ‘New Job’ button to change the job name.
    • Then, click ‘Next’ to continue.

      Enter export job name

    Step 2: Browse and select the OST file that you want to upload

    • Click ‘Browse for OST file'.

      Browse for OST file

    • Select the offline OST file from the local drive and then click on ‘Next’ to proceed. You can also share the OST file on a network with read/write permissions.

      Select OST file

    • EdbMails scans the offline OST file and recovers mailbox data even if the file is damaged or corrupted. In the process, the tool scans the file structure and its content to recover emails and other mailbox items. The complete recovery will depend on the size of the file and how damaged it is, so wait for the scan to complete.

      Recovery operation progress

    • Once the recovery is done, you will see the complete folder structure in left pane. You can open folders and view the emails, contacts, calendars, tasks and notes in the application even if Outlook is not installed on your computer.

    Step 3: Preview and choose the mailbox

    • Check emails, calendars, mailboxes, or folders, and click ‘Next’.

      Select mailboxes or folders

    Step 4: Connect to the target Office 365 server

    • Click the ‘Add New Connection’ button to configure a new connection to your target Office 365 server. If you’ve previously connected, simply choose that connection from the list and click ‘Connect to Existing’ to proceed.

      Click Add New

    • Choose the connection options you require and hit the ‘Next’ button.

      Select required connection option

    • Select an authentication method and click on the ‘Login’ button to continue.

      Connect to the target Office 365 server

    • Authenticate on Microsoft sign-in page.

      Microsoft sign-in page

    • Choose one of the available methods to load the mailboxes. Alternatively, you can import the mailbox list using a CSV file for bulk selection.

      Select the option to load the mailboxes

    Step 5: Map source and target mailboxes

    • Choose the required mailbox mapping option.

      Choose mailbox mapping option

    • EdbMails automatically creates the required mailboxes on your destination Office 365 server and assigns the proper licenses making the migration simple.
    • By default, EdbMails automatically maps mailboxes & folders between the source and target server. If required, you can manually map source mailboxes to specific target mailboxes for more control over the migration

      Map OST to Office 365 mailboxes

    Step 6: Initiate the import of all your mailbox data from OST to Office 365

    • Click on the ‘Start Migration’ button to start the migration.

      Start OST to Office 365 mailboxes

    • Migration is underway, and you can track its progress with the progress bar. You can pause or resume the process anytime you want. After the migration process is completed, EdbMails will show a confirmation message for the successful completion of the process.

      OST to Office 365 progress

Why Use EdbMails to Import OST File to Office 365?

  1. Import OST File Directly & Securely: EdbMails lets you import OST Files directly to Office 365 without Outlook, Exchange connectivity, or the original user profile. This eliminates the need to manually export OST to PST or Import OST to PST steps, making the migration process faster. This process is as simple as it securely moves the mailbox data to Microsoft 365.
  2. Full Recovery of OST Files: EdbMails recovers emails, attachments, contacts, calendars, tasks, notes, and scans from offline, orphaned, and inaccessible OST files. This ensures no data loss when you import OST file data to Office 365, even after profile deletion, system crash, or computer migration.
  3. Selective and Secure OST Files: With EdbMails, you can migrate selective mailbox and folder level, allowing users to import only the data they need. This helps in reducing unnecessary data transfer, reduces mailbox size, and improves performance in comparison to the export of the entire OST using traditional export OST to PST methods.
  4. Easy Alternative to Microsoft Migration Tools: Microsoft’s native migration tools typically involve scripting, admin-level configurations, and a lot of setup. EdbMails comes with a step-by-step guided interface, whether you import OST to PST for backup or import OST file data directly to Office 365, the tool ensures accuracy, security, and ease of use for both individuals and organizations.
  5. Automatic Mailbox Mapping: EdbMails automatically maps source and target mailboxes and creates mailboxes on the destination tenant if needed during import OST File to Office 365. This minimizes manual effort and helps to ensure a smooth and accurate migration.
  6. Pause and Resume Migration Reliability: EdbMails allows pausing and resuming migration at any point of time to provide continuous migration in case of network interruption. This skill makes importing an OST File to Office 365 reliable in unstable environments, without duplication of the previously migrated data.

Video Tutorials

  • OST to PST converter video

Additional Resources:

  • EdbMails OST to PST converter
  • Export email, calendars, contacts
  • Selective OST export
  • OST to Live Exchange
  • Outlook OST cannot be accessed
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 In this manual

IntroductionReasons to ImportSteps to Import

OST to Office 365 migration

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