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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    1. Home
    2. Product
    3. Hybrid Migration Planning

    Hybrid Migration Planning and Strategy Guide

    Steps to migrate Exchange Server in Hybrid Environment

User Manual

  • Exchange Migration Overview
  • Initial Setup
  • System Requirements
  • Installation
    • Installation process
    • Reinstall or Upgrade
    • How to uninstall
  • FAQ
    • General
    • Migration Free Trial / Demo
    • Migration License
    • Before Migration
    • Migration - Steps
    • After Migration
  • Videos
    • Exchange to Exchange
    • Exchange to Office 365
    • Exchange to PST
    • Public Folder to Office 365
    • Archive Mailbox to Office 365
    • Public Folder to Exchange
    • Archive Mailbox to Exchange
  • Screenshots
    • Exchange to Exchange
    • Exchange to Office 365
    • Exchange to PST
  • How it works?
    • Exchange to Exchange
    • Exchange to Office 365
    • Exchange to PST
    • Exchange Public Folder to Office 365
    • Exchange Public Folder to Exchange
    • Exchange 2010 to 2016 Public folder
    • Exchange 2013 Public folder to Office 365
    • Exchange 2016 Public folder to Office 365
    • Exchange Public Folder to Shared Mailbox
    • Archive Mailbox to Office 365
    • Archive Mailbox to Exchange
    • Hosted Exchange Migration
    • Hosted Exchange to Live Exchange Migration
    • Hosted Exchange to Office 365 Migration
    • Live Exchange to Hosted Exchange Migration
    • Hosted Exchange Public Folder to Office 365 Migration
    • Cross-forest migration from Exchange 2013 to Exchange 2019/2016
    • Hybrid Migration
    • Public folder Migration in Hybrid Environment
    • Migrate GAL and all address list
    • Disable msExchMailboxGuid
  • 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
    • Connect to multiple users using CSV file
    • Connect to Individual user for 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
  • Understanding the Application
    • Program's Component
    • Migration
    • Incremental Migration
    • Exchange Throttling Policy
  • Set Office 365 Impersonation rights
    • Using PowerShell commands
    • Using Office 365 GUI
  • Migration Types
    • Cutover Migration
    • Staged Migration
    • Hybrid Migration
  • Map the Mailboxes
  • Migration Walkthrough
    • From Exchange 2003
    • From Exchange 2007
    • From Exchange 2010 to Exchange 2019
    • From Exchange 2010 to Exchange 2016
    • From Exchange 2010 to Office 365
    • From Exchange 2013 to Exchange 2019
    • From Exchange 2013 to Exchange 2016
    • From Exchange 2013 to Office 365
    • From Exchange 2016 to Exchange 2019
    • From Exchange 2016 to Office 365
    • From Exchange 2019 to Office 365
    • From Office 365
  • Multifactor Authentication
    • Enable MFA in Office 365
    • Create App password for MFA
    • Disable Security Defaults

What is a Hybrid migration?

Hybrid migration is a migration technique that allows you to sync your on-premise Exchange data with Office 365. Hybrid migration, in general, synchronizes the on-premise Exchange mailbox with Exchange online / Office 365 to the same Active Directory (AD). It gives complete flexibility to migrate the mailbox data to the cloud and migrate the data back to the on-premise environment. You can also choose hybrid deployment to move or transfer mailboxes between on-premise Exchange and Exchange online.

Hybrid migration

One benefit of hybrid migration is that users with mailboxes both on-premises and in the cloud can access Global Address Lists (GAL) or the shared address book. Additionally, there is no need to create new user mailboxes or import user data on the target. An administrator who requires on-premises control can have his mailbox on Exchange on-premises, while the other users can have their mailboxes on Office 365.

  1. Pre-migration activities for Hybrid deployment

    Refer to this link to learn about the Exchange server hybrid deployment.

    The following links will guide you through the prerequisites for the Hybrid migration.

    1. List of prerequisites for Hybrid deployment
    2. Overview of the prerequisites for Hybrid Exchange migration

    For Instance: Your source Inbox folder is named 'Boîte de réception', which is in French language. If you migrate this folder directly to the destination server then by default it will not get mapped to the 'Inbox' folder on target server. In order to map this to the respective folder, change the regional settings on target server to that of your source mailbox folder language (in this case, it is French).

    Click here to know the steps to change the language and regional settings on Exchange server

Hybrid migration using EdbMails Exchange migration tool

EdbMails Exchange migration tool can help you migrate mailboxes from on-premises Exchange to Office 365 in a Hybrid environment. With EdbMails, you can migrate email messages, contacts, calendars, permissions, notes, appointments, journals, from the source to the target. In addition, you can also migrate your mailbox data from, to or within the hybrid environment from an Exchange or Office 365 server. The following links outline the procedure for Exchange Hybrid migration with EdbMails.

  • Migrating data within the hybrid environment
  • Migrating to a hybrid environment from another environment
  • Migrating from a hybrid environment to another environment

Migrating data within the hybrid environment

In this migration procedure, you migrate your data from an on-premise Exchange to Office 365 or vice versa (within the same Active Directory). Before you start, you need to check whether you are using Azure Active Directory Connect or an AD synchronization tool to synchronize data within your hybrid environments (between Office 365 and on-premise Exchange).

Ensure that the attribute msExchMailboxGuid is not synced between these environments. You can migrate within the hybrid environment after you disable the attribute msExchMailboxGuid as described in the article.

Another point to note is that public folders cannot exist simultaneously on both Office 365 and Exchange on-premises and you cannot migrate public folders if you plan to migrate data within the hybrid environment. To migrate on-prem Exchange Public folders to Microsoft 365 in a Hybrid environment, configure the Public folder mode as outlined in the link.

 Refer to the article to learn how to convert your on-premise Exchange mailboxes to a cloud-only deployment after the hybrid migration.

Migrating to a hybrid environment from another server

In this migration procedure, you migrate to a hybrid environment from a non-hybrid source (Exchange or Office 365 server). Since the target hybrid environment is having both Exchange and Office 365, you can use EdbMails Exchange migration to migrate to the target Office 365 or Exchange by connecting to the respective server as outlined in the following steps.

Migrating from a hybrid environment to another server

In this migration procedure, you migrate from a hybrid environment to a non-hybrid target (Exchange or Office 365 server). You can use EdbMails to connect to the respective source mailboxes (Exchange server in the case of on-premise and Office 365 in case the mailbox is on Office cloud) and select the target server for migration as described in the following steps.

Steps to perform Hybrid Exchange migration with EdbMails

  1. Step 1: Download and install EdbMails Exchange server migration software setup

    Download EdbMails and install the application on any machine connected to the source on-premise Exchange server. You can also install EdbMails on a non-Exchange server computer and connect to the source and target servers from the application.

    Launch the application and click 'Login' or 'Start Your Free Trial'.

     Refer to the link for a detailed list of EdbMails system requirements for Exchange migration.

    Download EdbMails application
  2. Step 2: Select the required migration technique from the menu

    Select Live Exchange Migration from the application’s migration wizard.

    Select Live Exchange Migration
  3. Step 3: Set the impersonation rights for the Global Admin

    Login as a global admin if you are migrating mailboxes on behalf of other users in your organization. If you do not have the necessary permissions, set the impersonation rights for the admin user account on the source server.

  4. Step 4: Connect to the source Server

    Refer to the below links to connect to the source mailboxes

    •  Connect to source Exchange server
    •  Connect to source Office 365 with modern authentication

    Following a successful login, you will see a list of the source mailboxes.

  5. Step 5: Select the mailboxes you want to migrate
    1. Select the mailboxes that you wish to migrate to the target.
    2. Depending on the target server click 'Migrate to Live Exchange' or 'Migrate to Office 365'.Select the mailboxes to perform migration
  6. Step 6: Customize the Hybrid Exchange migration

    EdbMails provides the following additional options to help you customize the Hybrid migration task.

    1. Additional Include and Exclude Filter Options
    2. Filter emails by Date: Migrate to the target server by applying the Date filter
    3. Filter emails by Size: Exclude emails from migration larger than a specified size.
  7. Step 7: Connect to your destination server

    Refer to the following links to connect to the destination mailboxes

    •  Connect to target Exchange server
    •  Connect to target Office 365 with modern authentication

    On successful login, you can see a list of the target mailboxes.

  8. Step 8: Map the Source and Target mailboxes

     Click here for the details to map source and target mailboxes.

  9. Step 9: Start the hybrid migration operation

    You can view the migration progress and verify the operation with the migration log report.

    Start the migration operation
  1. Post migration tasks for Hybrid Exchange deployment

    If you are migrating to / from a Hybrid Exchange environment from / to another server, perform the post-migration activities to enable correct mail flow to the target server.

    1. Add MX records to configure your domain on the new server.
    2. Configure Outlook profiles for users in your organization.
  2. Exchange migration troubleshooting

     Refer to the Exchange migration troubleshooting guide for possible solutions related to migration errors. For more information on EdbMails Exchange migration refer to the frequently asked questions (FAQs)

Advantages of using EdbMails for Hybrid Exchange migration

EdbMails is the best migration solution for Hybrid Exchange and Office 365 for the following reasons

  1. Single software for both Exchange and Office 365 migration
  2. Incremental migration feature to migrate the updated and new items on successive migrations
  3. Granular brick-level migration for migration of specific mailboxes and items
  4. Advanced filter and folder options to include or exclude items from migration
  5. Support for auto mapping folders and mailboxes
  6. You can migrate to the target server in a few steps without technical expertise.
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