How to migrate from Hosted Exchange server to Office 365?

Hosted Exchange to Office 365 migration

Steps to migrate Hosted Exchange to Office 365 using EdbMails software

EdbMails Exchange migration software is a simple and cost-effective solution for moving mailbox data from the source Hosted Exchange server to the target Office 365 server. With its advanced features, the software transforms and simplifies the Hosted Exchange migration for administrators.

Hosted Exchange to Office 365 migration

This unique approach makes the entire migration easy, reliable and ensures safe, effortless migration to Office 365. During the migration operation, the application ensures zero downtime and does not alter any of your data maintaining perfect consistency.

Pre Migration activities
- Step 1: Set the impersonation role to the admin user on the source
  Ensure that you set the ApplicationImpersonation permissions to the admin account on the Hosted Exchange server (source).
- Step 2: Create mailboxes on the target Office 365 server
  Before you migrate to Office 365, ensure that you create mailboxes for users in your organization and assign suitable licenses to them.
  Add users and assign licenses to Office 365 users
  Assign Microsoft 365 licenses to user accounts
  If you plan to migrate Public folders to Office 365, ensure that you create and configure the Public folder mailboxes on the target server.
  Create Office 365 Public folder and assign mailbox user
- Step 3: Set impersonation role to the admin user on the target
  Ensure that you have set the impersonation rights to the admin account on the target Office 365 server.
- Step 4: Add a custom domain to Office 365 (Optional)
  If you have a custom email domain from your hosting provider to which you want to migrate and receive emails, you must add and verify the domain on Office 365.
  Steps to add custom domain to Office 365
Hosted Exchange to Office 365 Migration
1. Step 1: Download and install EdbMails Exchange server migration software setup
  a. Download EdbMails and install the application on any computer that is connected to the source and target environment. You can also perform the migration operation by installing EdbMails on a non-Exchange server computer.
  b. Launch the application and click 'Login' or 'Start Your Free Trial'.
  c. Select the migration method as Live Exchange migration.
  Refer to the link for a detailed list of EdbMails system requirements for Exchange migration.
  Note: If the Standard folders (such as Inbox, Calendar, Contacts) on your source Exchange server mailboxes are initialized with a different language, follow the below details to migrate these folders to the respective system folders on the target (destination) server.
  For Instance: If your source Inbox folder is named 'Boîte de réception', which is in French language and you migrate this folder directly to the destination server, then by default it will not be mapped to the 'Inbox' folder on the target server. In order to map the folder with the french name to the respective folder, change the regional settings on the target server to match 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
2. Step 2: 'Login' or 'Start Your Free Trial' to access the application
  In the Connect to Exchange server (Source) window, select 'Connect using Global Admin User'. Refer to the link for instructions on how to use the different Exchange server connection methods supported by EdbMails.
  With EdbMails, you can migrate mailboxes, public folders, and archive mailboxes from Hosted Exchange to Office 365.
3. Step 3: Select the mailboxes and connect to Office 365
  Select the mailboxes and folders from the Hosted Exchange that you wish to migrate to Office 365.
  Click 'Migrate to Office 365' to setup the connection with the target server
  If this is the first time you’re migrating with EdbMails, the migration is a full migration. On subsequent migrations from the same source to the target, the migration is incremental.
4. Step 4: Customize the Hosted Exchange migration operation
  EdbMails provides the following additional options to help you customize the migration task.
  Additional Include and Exclude Filter Options
  Filter emails by Date: Migrate to Exchange 2019 by applying the Date filter
  Filter emails by Size: Exclude emails from migration larger than a specified size.
5. Step 5: Connect to target Office 365 as Global Admin User
  EdbMails supports both modern and classic authentication. Connect to the target server by selecting Auto or Manual registration (modern authentication) and the connection method as Mailboxes, Public folder or Archive Mailbox.
  Connect to Office 365 server using secure modern authentication
6. Step 6: Map the mailboxes between the source and the target
  The mapping activity in EdbMails can automatically match and map the mailboxes and folders between Exchange and Office 365 and saves time when you’re migrating a large number of mailboxes.
7. Step 7: Start the migration from Hosted Exchange to Office 365
  Start and monitor the migration operation after you complete the mailbox mapping. Finally, verify the count of migrated emails, folders and mailbox items with EdbMails text-based log report.
Post-migration tasks
- Step 1: Update the MX records to point to Office 365
  To receive messages on Office 365, change the DNS records known as MX records to enable email to work with the new server you have migrated to. In addition, configure the Autodiscover record to allow Outlook to connect to the migrated mailboxes.
- Step 2: Create a new Outlook profile for users in the new domain
  Configure the Outlook profile for each user in your domain if Outlook has problems connecting to Office 365.
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)

See the prerequisites and migration steps if you want to migrate from Hosted Exchange to Exchange 2019 and 2016.

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Hosted Exchange to Office 365 migration

Steps to migrate Hosted Exchange to Office 365 using EdbMails software

User Manual

Pre Migration activities

Hosted Exchange to Office 365 Migration

Post-migration tasks

Exchange migration troubleshooting